115320239 has 2 divisors, whose sum is σ = 115320240. Its totient is φ = 115320238.

The previous prime is 115320169. The next prime is 115320241. The reversal of 115320239 is 932023511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115320239 - 2⁸ = 115319983 is a prime.

Together with 115320241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115320839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57660119 + 57660120.

It is an arithmetic number, because the mean of its divisors is an integer number (57660120).

Almost surely, 2^115320239 is an apocalyptic number.

115320239 is a deficient number, since it is larger than the sum of its proper divisors (1).

115320239 is an equidigital number, since it uses as much as digits as its factorization.

115320239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 115320239 is about 10738.7261348821. The cubic root of 115320239 is about 486.7453873305.

The spelling of 115320239 in words is "one hundred fifteen million, three hundred twenty thousand, two hundred thirty-nine".