115665507 has 12 divisors (see below), whose sum is σ = 169362024. Its totient is φ = 76053600.

The previous prime is 115665499. The next prime is 115665523. The reversal of 115665507 is 705566511.

It is not a de Polignac number, because 115665507 - 2³ = 115665499 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (115665587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87369 + ... + 88682.

It is an arithmetic number, because the mean of its divisors is an integer number (14113502).

Almost surely, 2^115665507 is an apocalyptic number.

115665507 is a deficient number, since it is larger than the sum of its proper divisors (53696517).

115665507 is a wasteful number, since it uses less digits than its factorization.

115665507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176130 (or 176127 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 115665507 is about 10754.7899561079. The cubic root of 115665507 is about 487.2306741144.

The spelling of 115665507 in words is "one hundred fifteen million, six hundred sixty-five thousand, five hundred seven".