130331556 has 36 divisors (see below), whose sum is σ = 329801472. Its totient is φ = 43397424.

The previous prime is 130331519. The next prime is 130331561. The reversal of 130331556 is 655133031.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×130331556² = 33972628978762272, which contains 22 as substring.

It is a plaindrome in base 14.

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, 55845 + ... + 58131.

It is an arithmetic number, because the mean of its divisors is an integer number (9161152).

Almost surely, 2^130331556 is an apocalyptic number.

It is an amenable number.

130331556 is an abundant number, since it is smaller than the sum of its proper divisors (199469916).

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

130331556 is a wasteful number, since it uses less digits than its factorization.

130331556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880 (or 3875 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 130331556 is about 11416.2846846073. The cubic root of 130331556 is about 507.0100017867.

Adding to 130331556 its reverse (655133031), we get a palindrome (785464587).

The spelling of 130331556 in words is "one hundred thirty million, three hundred thirty-one thousand, five hundred fifty-six".