131264556 has 24 divisors (see below), whose sum is σ = 316846320. Its totient is φ = 42245952.

The previous prime is 131264537. The next prime is 131264563. The reversal of 131264556 is 655462131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188251 + ... + 188946.

It is an arithmetic number, because the mean of its divisors is an integer number (13201930).

Almost surely, 2^131264556 is an apocalyptic number.

It is an amenable number.

131264556 is an abundant number, since it is smaller than the sum of its proper divisors (185581764).

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

131264556 is a wasteful number, since it uses less digits than its factorization.

131264556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377233 (or 377231 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 131264556 is about 11457.0744956992. The cubic root of 131264556 is about 508.2169645896.

The spelling of 131264556 in words is "one hundred thirty-one million, two hundred sixty-four thousand, five hundred fifty-six".