130685391 has 6 divisors (see below), whose sum is σ = 188767800. Its totient is φ = 87123588.

The previous prime is 130685389. The next prime is 130685393. The reversal of 130685391 is 193586031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (130685389) and next prime (130685393).

It is not a de Polignac number, because 130685391 - 2¹ = 130685389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130685393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7260291 + ... + 7260308.

It is an arithmetic number, because the mean of its divisors is an integer number (31461300).

Almost surely, 2^130685391 is an apocalyptic number.

130685391 is a deficient number, since it is larger than the sum of its proper divisors (58082409).

130685391 is a wasteful number, since it uses less digits than its factorization.

130685391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14520605 (or 14520602 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 130685391 is about 11431.7711226214. The cubic root of 130685391 is about 507.4684115681.

The spelling of 130685391 in words is "one hundred thirty million, six hundred eighty-five thousand, three hundred ninety-one".