130351921 has 4 divisors (see below), whose sum is σ = 148973632. Its totient is φ = 111730212.

The previous prime is 130351909. The next prime is 130351927. The reversal of 130351921 is 129153031.

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 a cyclic number.

It is not a de Polignac number, because 130351921 - 2⁵ = 130351889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130351927) 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, 9310845 + ... + 9310858.

It is an arithmetic number, because the mean of its divisors is an integer number (37243408).

Almost surely, 2^130351921 is an apocalyptic number.

It is an amenable number.

130351921 is a deficient number, since it is larger than the sum of its proper divisors (18621711).

130351921 is an equidigital number, since it uses as much as digits as its factorization.

130351921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18621710.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 130351921 is about 11417.1765774205. The cubic root of 130351921 is about 507.0364080828.

The spelling of 130351921 in words is "one hundred thirty million, three hundred fifty-one thousand, nine hundred twenty-one".