115117505 has 4 divisors (see below), whose sum is σ = 138141012. Its totient is φ = 92094000.

The previous prime is 115117481. The next prime is 115117529. The reversal of 115117505 is 505711511.

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 (115117481) and next prime (115117529).

It can be written as a sum of positive squares in 2 ways, for example, as 68277169 + 46840336 = 8263^2 + 6844^2 .

It is not a de Polignac number, because 115117505 - 2⁶ = 115117441 is a prime.

It is a Duffinian number.

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, 11511746 + ... + 11511755.

It is an arithmetic number, because the mean of its divisors is an integer number (34535253).

Almost surely, 2^115117505 is an apocalyptic number.

It is an amenable number.

115117505 is a deficient number, since it is larger than the sum of its proper divisors (23023507).

115117505 is an equidigital number, since it uses as much as digits as its factorization.

115117505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23023506.

The product of its (nonzero) digits is 875, while the sum is 26.

The square root of 115117505 is about 10729.2825948430. The cubic root of 115117505 is about 486.4599857871.

The spelling of 115117505 in words is "one hundred fifteen million, one hundred seventeen thousand, five hundred five".