115031917 has 48 divisors (see below), whose sum is σ = 161115136. Its totient is φ = 79833600.

The previous prime is 115031899. The next prime is 115031921. The reversal of 115031917 is 719130511.

It is not a de Polignac number, because 115031917 - 2⁷ = 115031789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115031977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 341173 + ... + 341509.

Almost surely, 2^115031917 is an apocalyptic number.

It is an amenable number.

115031917 is a deficient number, since it is larger than the sum of its proper divisors (46083219).

115031917 is a wasteful number, since it uses less digits than its factorization.

115031917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 28.

The square root of 115031917 is about 10725.2933293220. The cubic root of 115031917 is about 486.3393975242.

The spelling of 115031917 in words is "one hundred fifteen million, thirty-one thousand, nine hundred seventeen".