130636931 has 8 divisors (see below), whose sum is σ = 133171584. Its totient is φ = 128122560.

The previous prime is 130636907. The next prime is 130636939. The reversal of 130636931 is 139636031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130636931 - 2⁶ = 130636867 is a prime.

It is a super-2 number, since 2×130636931² = 34132015482197522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130636939) 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, 8270 + ... + 18156.

It is an arithmetic number, because the mean of its divisors is an integer number (16646448).

Almost surely, 2^130636931 is an apocalyptic number.

130636931 is a deficient number, since it is larger than the sum of its proper divisors (2534653).

130636931 is an equidigital number, since it uses as much as digits as its factorization.

130636931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10141.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 130636931 is about 11429.6513945089. The cubic root of 130636931 is about 507.4056783140.

The spelling of 130636931 in words is "one hundred thirty million, six hundred thirty-six thousand, nine hundred thirty-one".