Properties of the Number 1125

One Thousand One Hundred Twenty-Five

Basics

Value: 1124 → 1125 → 1126

Parity: odd

Prime: No

Previous Prime: 1123

Next Prime: 1129

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 ³

Divisors: 1, 3, 5, 9, 15, 25, 45, 75, 125, 225

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001100101

Octal: 2145

Duodecimal: 799

Hexadecimal: 465

Square: 1265625

Square Root: 33.54101966249684

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Primorial base exp-function: digits in primorial base representation of n become the exponents of successive prime factors whose product a(n) is. A276086

Powerful numbers (A001694) that are not prime powers (A000961). A286708

Numbers k that divide the (right) concatenation of all numbers <= k written in base 25 (most significant digit on left). A29470

Numbers that are the sum of 2 positive cubes. A3325

Achilles numbers - powerful but imperfect: if n = Product(p_i^e_i) then all e_i > 1 (i.e., powerful), but the highest common factor of the e_i is 1, i.e., not a perfect power. A52486

a(n) = n*(n+5)/2. A55998

Number of partitions of n into prime power parts (1 included); number of nonisomorphic Abelian subgroups of symmetric group S_n. A23893

Numbers n such that A048767(n) = n. A48768

Primal codes of finite idempotent functions on positive integers. A109298

Numbers of the form 3ⁱ*5^j with i, j >= 0. A3593