130561431 has 48 divisors (see below), whose sum is σ = 237944448. Its totient is φ = 62596800.

The previous prime is 130561427. The next prime is 130561433. The reversal of 130561431 is 134165031.

It is not a de Polignac number, because 130561431 - 2² = 130561427 is a prime.

It is a super-2 number, since 2×130561431² = 34092574529535522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130561433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17916 + ... + 24126.

It is an arithmetic number, because the mean of its divisors is an integer number (4957176).

Almost surely, 2^130561431 is an apocalyptic number.

130561431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130561431 is a deficient number, since it is larger than the sum of its proper divisors (107383017).

130561431 is a wasteful number, since it uses less digits than its factorization.

130561431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6252 (or 6245 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 130561431 is about 11426.3481042720. The cubic root of 130561431 is about 507.3079098630.

The spelling of 130561431 in words is "one hundred thirty million, five hundred sixty-one thousand, four hundred thirty-one".