115715115 has 32 divisors (see below), whose sum is σ = 206223360. Its totient is φ = 61562592.

The previous prime is 115715113. The next prime is 115715129. The reversal of 115715115 is 511517511.

It is a happy number.

It is not a de Polignac number, because 115715115 - 2¹ = 115715113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (115715113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73062 + ... + 74628.

It is an arithmetic number, because the mean of its divisors is an integer number (6444480).

Almost surely, 2^115715115 is an apocalyptic number.

115715115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115715115 is a deficient number, since it is larger than the sum of its proper divisors (90508245).

115715115 is a wasteful number, since it uses less digits than its factorization.

115715115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128 (or 2122 counting only the distinct ones).

The product of its digits is 875, while the sum is 27.

The square root of 115715115 is about 10757.0960300631. The cubic root of 115715115 is about 487.3003205896.

The spelling of 115715115 in words is "one hundred fifteen million, seven hundred fifteen thousand, one hundred fifteen".