115717605 has 16 divisors (see below), whose sum is σ = 187059264. Its totient is φ = 61079040.

The previous prime is 115717597. The next prime is 115717607. The reversal of 115717605 is 506717511.

It is not a de Polignac number, because 115717605 - 2³ = 115717597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115717607) 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 15 ways as a sum of consecutive naturals, for example, 38311 + ... + 41220.

It is an arithmetic number, because the mean of its divisors is an integer number (11691204).

Almost surely, 2^115717605 is an apocalyptic number.

115717605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115717605 is a deficient number, since it is larger than the sum of its proper divisors (71341659).

115717605 is an equidigital number, since it uses as much as digits as its factorization.

115717605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79636.

The product of its (nonzero) digits is 7350, while the sum is 33.

The square root of 115717605 is about 10757.2117669961. The cubic root of 115717605 is about 487.3038158665.

The spelling of 115717605 in words is "one hundred fifteen million, seven hundred seventeen thousand, six hundred five".