130979287 has 2 divisors, whose sum is σ = 130979288. Its totient is φ = 130979286.

The previous prime is 130979267. The next prime is 130979353. The reversal of 130979287 is 782979031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130979287 - 2⁷ = 130979159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130979207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65489643 + 65489644.

It is an arithmetic number, because the mean of its divisors is an integer number (65489644).

Almost surely, 2^130979287 is an apocalyptic number.

130979287 is a deficient number, since it is larger than the sum of its proper divisors (1).

130979287 is an equidigital number, since it uses as much as digits as its factorization.

130979287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 130979287 is about 11444.6182548829. The cubic root of 130979287 is about 507.8485389183.

The spelling of 130979287 in words is "one hundred thirty million, nine hundred seventy-nine thousand, two hundred eighty-seven".