130920291 has 12 divisors (see below), whose sum is σ = 189395232. Its totient is φ = 87147216.

The previous prime is 130920289. The next prime is 130920323. The reversal of 130920291 is 192029031.

It is not a de Polignac number, because 130920291 - 2¹ = 130920289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130920271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4651 + ... + 16836.

It is an arithmetic number, because the mean of its divisors is an integer number (15782936).

Almost surely, 2^130920291 is an apocalyptic number.

130920291 is a deficient number, since it is larger than the sum of its proper divisors (58474941).

130920291 is a wasteful number, since it uses less digits than its factorization.

130920291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22170 (or 22167 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 130920291 is about 11442.0405085806. The cubic root of 130920291 is about 507.7722786876.

The spelling of 130920291 in words is "one hundred thirty million, nine hundred twenty thousand, two hundred ninety-one".