115139799 has 10 divisors (see below), whose sum is σ = 171999080. Its totient is φ = 76759812.

The previous prime is 115139749. The next prime is 115139807. The reversal of 115139799 is 997931511.

It is a happy number.

It is not a de Polignac number, because 115139799 - 2⁹ = 115139287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115139719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 710659 + ... + 710820.

It is an arithmetic number, because the mean of its divisors is an integer number (17199908).

Almost surely, 2^115139799 is an apocalyptic number.

115139799 is a deficient number, since it is larger than the sum of its proper divisors (56859281).

115139799 is an equidigital number, since it uses as much as digits as its factorization.

115139799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421491 (or 1421482 counting only the distinct ones).

The product of its digits is 76545, while the sum is 45.

The square root of 115139799 is about 10730.3214770108. The cubic root of 115139799 is about 486.4913868583.

It can be divided in two parts, 11513 and 9799, that added together give a palindrome (21312).

The spelling of 115139799 in words is "one hundred fifteen million, one hundred thirty-nine thousand, seven hundred ninety-nine".