Properties of the Number 12149

Twelve Thousand One Hundred Forty-Nine

Basics

Value: 12148 → 12149 → 12150

Parity: odd

Prime: Yes

Previous Prime: 12143

Next Prime: 12157

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 12149

Divisors: 1, 12149

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111101110101

Octal: 27565

Duodecimal: 7045

Hexadecimal: 2f75

Square: 147598201

Square Root: 110.22250223978767

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

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

Primes from merging of 5 successive digits in decimal expansion of sqrt(2). A198165

Primes which are the concatenation of two squares (in decimal notation). A167535

Primes of the form 6n² - 1. A90686

Primes for which the weight as defined in A117078 is 9 and the gap as defined in A001223 is 8. A118922

a(n) = r·a(ceiling(n/2))+s·a(floor(n/2)) with a(1)=1 and (r,s)=(4,1). A268527

First of triples of consecutive happy numbers, i.e., the first of three consecutive integers each of which is a happy number (A007770). A72494

a(1) = 1, a(2) = 2, a(3) = 3, a(n+3) = a(n) + a(n+1). A84338

Primes q = 4·p+1, where p == 2 (mod 5) is also prime. A221981

a(n) is n-th prime == -1 (mod 6n). A138905

Least prime p such that π(p·n) = π(q·n)² for some prime q, where π(x) denotes the number of primes not exceeding x. A260140