115087839 has 4 divisors (see below), whose sum is σ = 153450456. Its totient is φ = 76725224.

The previous prime is 115087829. The next prime is 115087849. The reversal of 115087839 is 938780511.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (115087829) and next prime (115087849).

It is a cyclic number.

It is not a de Polignac number, because 115087839 - 2¹¹ = 115085791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115087839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115087829) 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 3 ways as a sum of consecutive naturals, for example, 19181304 + ... + 19181309.

It is an arithmetic number, because the mean of its divisors is an integer number (38362614).

Almost surely, 2^115087839 is an apocalyptic number.

115087839 is a deficient number, since it is larger than the sum of its proper divisors (38362617).

115087839 is an equidigital number, since it uses as much as digits as its factorization.

115087839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38362616.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 115087839 is about 10727.9000274984. The cubic root of 115087839 is about 486.4181949759.

The spelling of 115087839 in words is "one hundred fifteen million, eighty-seven thousand, eight hundred thirty-nine".