130242979 has 2 divisors, whose sum is σ = 130242980. Its totient is φ = 130242978.

The previous prime is 130242953. The next prime is 130243007. The reversal of 130242979 is 979242031.

It is a weak prime.

It is an emirp because it is prime and its reverse (979242031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130242979 - 2⁵ = 130242947 is a prime.

It is not a weakly prime, because it can be changed into another prime (130242919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65121489 + 65121490.

It is an arithmetic number, because the mean of its divisors is an integer number (65121490).

Almost surely, 2^130242979 is an apocalyptic number.

130242979 is a deficient number, since it is larger than the sum of its proper divisors (1).

130242979 is an equidigital number, since it uses as much as digits as its factorization.

130242979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 130242979 is about 11412.4046107733. The cubic root of 130242979 is about 506.8951163258.

The spelling of 130242979 in words is "one hundred thirty million, two hundred forty-two thousand, nine hundred seventy-nine".