130331560 has 32 divisors (see below), whose sum is σ = 293609160. Its totient is φ = 52068096.

The previous prime is 130331519. The next prime is 130331561. The reversal of 130331560 is 65133031.

It can be written as a sum of positive squares in 4 ways, for example, as 112741924 + 17589636 = 10618^2 + 4194^2 .

It is not an unprimeable number, because it can be changed into a prime (130331561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43222 + ... + 46138.

Almost surely, 2^130331560 is an apocalyptic number.

130331560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130331560 is an abundant number, since it is smaller than the sum of its proper divisors (163277600).

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

130331560 is a wasteful number, since it uses less digits than its factorization.

130331560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4045 (or 4041 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 130331560 is about 11416.2848597957. The cubic root of 130331560 is about 507.0100069736.

Adding to 130331560 its reverse (65133031), we get a palindrome (195464591).

The spelling of 130331560 in words is "one hundred thirty million, three hundred thirty-one thousand, five hundred sixty".