131131959 has 32 divisors (see below), whose sum is σ = 208198656. Its totient is φ = 71850240.

The previous prime is 131131943. The next prime is 131131961. The reversal of 131131959 is 959131131.

It is not a de Polignac number, because 131131959 - 2⁴ = 131131943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131131909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53979 + ... + 56355.

It is an arithmetic number, because the mean of its divisors is an integer number (6506208).

Almost surely, 2^131131959 is an apocalyptic number.

131131959 is a deficient number, since it is larger than the sum of its proper divisors (77066697).

131131959 is a wasteful number, since it uses less digits than its factorization.

131131959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495.

The product of its digits is 3645, while the sum is 33.

The square root of 131131959 is about 11451.2863469568. The cubic root of 131131959 is about 508.0457816739.

The spelling of 131131959 in words is "one hundred thirty-one million, one hundred thirty-one thousand, nine hundred fifty-nine".