115885617 has 32 divisors (see below), whose sum is σ = 175219200. Its totient is φ = 67684608.

The previous prime is 115885589. The next prime is 115885619. The reversal of 115885617 is 716588511.

It is not a de Polignac number, because 115885617 - 2⁷ = 115885489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115885619) 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, 56158 + ... + 58184.

It is an arithmetic number, because the mean of its divisors is an integer number (5475600).

Almost surely, 2^115885617 is an apocalyptic number.

115885617 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

115885617 is a deficient number, since it is larger than the sum of its proper divisors (59333583).

115885617 is a wasteful number, since it uses less digits than its factorization.

115885617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125.

The product of its digits is 67200, while the sum is 42.

The square root of 115885617 is about 10765.0182071374. The cubic root of 115885617 is about 487.5395428805.

It can be divided in two parts, 11588 and 5617, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 115885617 in words is "one hundred fifteen million, eight hundred eighty-five thousand, six hundred seventeen".