131577056 has 24 divisors (see below), whose sum is σ = 278969544. Its totient is φ = 60727680.

The previous prime is 131577049. The next prime is 131577067. The reversal of 131577056 is 650775131.

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, 157730 + ... + 158561.

It is an arithmetic number, because the mean of its divisors is an integer number (11623731).

Almost surely, 2^131577056 is an apocalyptic number.

131577056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131577056 is an abundant number, since it is smaller than the sum of its proper divisors (147392488).

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

131577056 is a wasteful number, since it uses less digits than its factorization.

131577056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316314 (or 316306 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 35.

The square root of 131577056 is about 11470.7042503937. The cubic root of 131577056 is about 508.6199470367.

The spelling of 131577056 in words is "one hundred thirty-one million, five hundred seventy-seven thousand, fifty-six".