115017865 has 4 divisors (see below), whose sum is σ = 138021444. Its totient is φ = 92014288.

The previous prime is 115017829. The next prime is 115017899. The reversal of 115017865 is 568710511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42614784 + 72403081 = 6528^2 + 8509^2 .

It is a cyclic number.

It is not a de Polignac number, because 115017865 - 2⁷ = 115017737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115017865.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11501782 + ... + 11501791.

It is an arithmetic number, because the mean of its divisors is an integer number (34505361).

Almost surely, 2^115017865 is an apocalyptic number.

It is an amenable number.

115017865 is a deficient number, since it is larger than the sum of its proper divisors (23003579).

115017865 is an equidigital number, since it uses as much as digits as its factorization.

115017865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23003578.

The product of its (nonzero) digits is 8400, while the sum is 34.

The square root of 115017865 is about 10724.6382223365. The cubic root of 115017865 is about 486.3195933989.

The spelling of 115017865 in words is "one hundred fifteen million, seventeen thousand, eight hundred sixty-five".