115664973 has 16 divisors (see below), whose sum is σ = 155815296. Its totient is φ = 76317120.

The previous prime is 115664959. The next prime is 115664987. The reversal of 115664973 is 379466511.

It is an interprime number because it is at equal distance from previous prime (115664959) and next prime (115664987).

It is a de Polignac number, because none of the positive numbers 2^k-115664973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115664903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158736 + ... + 159462.

It is an arithmetic number, because the mean of its divisors is an integer number (9738456).

Almost surely, 2^115664973 is an apocalyptic number.

It is an amenable number.

115664973 is a deficient number, since it is larger than the sum of its proper divisors (40150323).

115664973 is a wasteful number, since it uses less digits than its factorization.

115664973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204.

The product of its digits is 136080, while the sum is 42.

The square root of 115664973 is about 10754.7651299319. The cubic root of 115664973 is about 487.2299243041.

The spelling of 115664973 in words is "one hundred fifteen million, six hundred sixty-four thousand, nine hundred seventy-three".