115905317 has 4 divisors (see below), whose sum is σ = 126442176. Its totient is φ = 105368460.

The previous prime is 115905313. The next prime is 115905347. The reversal of 115905317 is 713509511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115905317 - 2² = 115905313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115905313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5268413 + ... + 5268434.

It is an arithmetic number, because the mean of its divisors is an integer number (31610544).

Almost surely, 2^115905317 is an apocalyptic number.

It is an amenable number.

115905317 is a deficient number, since it is larger than the sum of its proper divisors (10536859).

115905317 is a wasteful number, since it uses less digits than its factorization.

115905317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10536858.

The product of its (nonzero) digits is 4725, while the sum is 32.

The square root of 115905317 is about 10765.9331690291. The cubic root of 115905317 is about 487.5671677778.

The spelling of 115905317 in words is "one hundred fifteen million, nine hundred five thousand, three hundred seventeen".