131339956 has 24 divisors (see below), whose sum is σ = 259388640. Its totient is φ = 57640800.

The previous prime is 131339953. The next prime is 131339969. The reversal of 131339956 is 659933131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131339953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50190 + ... + 52741.

It is an arithmetic number, because the mean of its divisors is an integer number (10807860).

Almost surely, 2^131339956 is an apocalyptic number.

It is an amenable number.

131339956 is a deficient number, since it is larger than the sum of its proper divisors (128048684).

131339956 is a wasteful number, since it uses less digits than its factorization.

131339956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102975 (or 102973 counting only the distinct ones).

The product of its digits is 65610, while the sum is 40.

The square root of 131339956 is about 11460.3645666270. The cubic root of 131339956 is about 508.3142546872.

The spelling of 131339956 in words is "one hundred thirty-one million, three hundred thirty-nine thousand, nine hundred fifty-six".