115597239 has 8 divisors (see below), whose sum is σ = 154223232. Its totient is φ = 77018040.

The previous prime is 115597199. The next prime is 115597247. The reversal of 115597239 is 932795511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115597239 - 2¹⁷ = 115466167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115597239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115597289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5457 + ... + 16154.

It is an arithmetic number, because the mean of its divisors is an integer number (19277904).

Almost surely, 2^115597239 is an apocalyptic number.

115597239 is a deficient number, since it is larger than the sum of its proper divisors (38625993).

115597239 is a wasteful number, since it uses less digits than its factorization.

115597239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23397.

The product of its digits is 85050, while the sum is 42.

The square root of 115597239 is about 10751.6156460320. The cubic root of 115597239 is about 487.1347976205.

The spelling of 115597239 in words is "one hundred fifteen million, five hundred ninety-seven thousand, two hundred thirty-nine".