130305239 has 2 divisors, whose sum is σ = 130305240. Its totient is φ = 130305238.

The previous prime is 130305223. The next prime is 130305271. The reversal of 130305239 is 932503031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130305239 - 2⁴ = 130305223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130305139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65152619 + 65152620.

It is an arithmetic number, because the mean of its divisors is an integer number (65152620).

Almost surely, 2^130305239 is an apocalyptic number.

130305239 is a deficient number, since it is larger than the sum of its proper divisors (1).

130305239 is an equidigital number, since it uses as much as digits as its factorization.

130305239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 130305239 is about 11415.1320185095. The cubic root of 130305239 is about 506.9758737500.

The spelling of 130305239 in words is "one hundred thirty million, three hundred five thousand, two hundred thirty-nine".