131256916 has 12 divisors (see below), whose sum is σ = 262513888. Its totient is φ = 56252952.

The previous prime is 131256907. The next prime is 131256967. The reversal of 131256916 is 619652131.

131256916 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2343846 + ... + 2343901.

Almost surely, 2^131256916 is an apocalyptic number.

It is an amenable number.

131256916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131256916 is a wasteful number, since it uses less digits than its factorization.

131256916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687758 (or 4687756 counting only the distinct ones).

The product of its digits is 9720, while the sum is 34.

The square root of 131256916 is about 11456.7410723993. The cubic root of 131256916 is about 508.2071044693.

The spelling of 131256916 in words is "one hundred thirty-one million, two hundred fifty-six thousand, nine hundred sixteen".