115317665 has 8 divisors (see below), whose sum is σ = 140992488. Its totient is φ = 90513280.

The previous prime is 115317617. The next prime is 115317673. The reversal of 115317665 is 566713511.

It can be written as a sum of positive squares in 4 ways, for example, as 7656289 + 107661376 = 2767^2 + 10376^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-115317665 is a prime.

It is a super-2 number, since 2×115317665² = 26596327722104450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 217316 + ... + 217845.

It is an arithmetic number, because the mean of its divisors is an integer number (17624061).

Almost surely, 2^115317665 is an apocalyptic number.

It is an amenable number.

115317665 is a deficient number, since it is larger than the sum of its proper divisors (25674823).

115317665 is an equidigital number, since it uses as much as digits as its factorization.

115317665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435219.

The product of its digits is 18900, while the sum is 35.

The square root of 115317665 is about 10738.6062875962. The cubic root of 115317665 is about 486.7417658443.

The spelling of 115317665 in words is "one hundred fifteen million, three hundred seventeen thousand, six hundred sixty-five".