131506056 has 48 divisors (see below), whose sum is σ = 388542960. Its totient is φ = 39850080.

The previous prime is 131506043. The next prime is 131506099. The reversal of 131506056 is 650605131.

It is a happy number.

131506056 is a `hidden beast` number, since 1 + 3 + 1 + 50 + 605 + 6 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82230 + ... + 83813.

It is an arithmetic number, because the mean of its divisors is an integer number (8094645).

Almost surely, 2^131506056 is an apocalyptic number.

It is an amenable number.

131506056 is an abundant number, since it is smaller than the sum of its proper divisors (257036904).

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

131506056 is a wasteful number, since it uses less digits than its factorization.

131506056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166066 (or 166059 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 131506056 is about 11467.6089922878. The cubic root of 131506056 is about 508.5284454869.

The spelling of 131506056 in words is "one hundred thirty-one million, five hundred six thousand, fifty-six".