130109187657 has 4 divisors (see below), whose sum is σ = 173478916880. Its totient is φ = 86739458436.

The previous prime is 130109187653. The next prime is 130109187667. The reversal of 130109187657 is 756781901031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 130109187657 - 2² = 130109187653 is a prime.

It is a super-2 number, since 2×130109187657² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130109187653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21684864607 + ... + 21684864612.

It is an arithmetic number, because the mean of its divisors is an integer number (43369729220).

Almost surely, 2^130109187657 is an apocalyptic number.

It is an amenable number.

130109187657 is a deficient number, since it is larger than the sum of its proper divisors (43369729223).

130109187657 is an equidigital number, since it uses as much as digits as its factorization.

130109187657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43369729222.

The product of its (nonzero) digits is 317520, while the sum is 48.

The spelling of 130109187657 in words is "one hundred thirty billion, one hundred nine million, one hundred eighty-seven thousand, six hundred fifty-seven".