Properties of the Number -137149

One Hundred Thirty-Seven Thousand One Hundred Forty-Nine

Basics

Value: -137150 → -137149 → -137148

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 23 × 67 × 89

Divisors: 1, 23, 67, 89, 1541, 2047, 5963, 137149

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100001011110111101

Octal: -413675

Duodecimal: -67451

Hexadecimal: -217bd

Square: 18809848201

Square Root: 370.3363336212098

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

Strong pseudoprimes to base 4. A20230

Odd numbers k > 1 such that 2^(k-1/2) == -(2/k) = -A091337(k) (mod k), where (2/k) is the Jacobi (or Kronecker) symbol. A306310

Integers j not of form 3m+2 such that for any integer k > 0, j·10^k+1 has a divisor in the set { 7, 11, 13, 37 }. A243969

Strong pseudoprimes to base 11. A20237

Fermat pseudoprimes to base 2 with three prime factors. A215672

a(n)=12·sum(1<=i<=j<=k<=n,i·j/k). A88941

Increasing gaps between 2-pseudoprimes (lower end). A175736

Numbers m such that exactly half of the a such that 0<a<m and (a,m)=1 satisfy a^m-1 == 1 (mod m). A191311

Odd non-Carmichael numbers with increasing numbers of bases to which they are pseudoprimes. A194946

Numbers in A191311 but not in A129521. A191592