ℕ atory
Play Now

Properties of the Number 131

One Hundred Thirty-One

Basics

Value: 130 → 131 → 132

Parity: odd

Prime: Yes

Previous Prime: 127

Next Prime: 137

Digit Sum: 5

Digital Root: 5

Palindrome: Yes

Factorization: 131

Divisors: 1, 131

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10000011

Octal: 203

Duodecimal: AB

Hexadecimal: 83

Square: 17161

Square Root: 11.445523142259598

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

The prime numbers. A40
The odd numbers: a(n) = 2·n + 1. A5408
Powers of primes. Alternatively, 1 and the prime powers (pk, p prime, k >= 1). A961
Palindromes in base 10. A2113
Prime numbers at the beginning of the 20th century (today 1 is no longer regarded as a prime). A8578
Numbers k such that 8·10k - 49 is prime. A271269
Sophie Germain primes p: 2p+1 is also prime. A5384
Primes of the form 4·k + 3. A2145
Prime powers: numbers of the form pk where p is a prime and k >= 1. A246655
Unary-encoded compressed factorization of natural numbers. A156552

We use cookies

Some cookies are essential for Natory to function, like keeping you signed in. We also use optional cookies to understand how the app is used and improve it over time. Learn more in our Privacy Policy. You can manage your preferences anytime.