115787166 has 32 divisors (see below), whose sum is σ = 253483776. Its totient is φ = 34968000.

The previous prime is 115787149. The next prime is 115787173. The reversal of 115787166 is 661787511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17706 + ... + 23346.

It is an arithmetic number, because the mean of its divisors is an integer number (7921368).

Almost surely, 2^115787166 is an apocalyptic number.

115787166 is an abundant number, since it is smaller than the sum of its proper divisors (137696610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115787166 is a wasteful number, since it uses less digits than its factorization.

115787166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5968.

The product of its digits is 70560, while the sum is 42.

The square root of 115787166 is about 10760.4445075471. Note that the first 3 decimals coincide. The cubic root of 115787166 is about 487.4014401672.

The spelling of 115787166 in words is "one hundred fifteen million, seven hundred eighty-seven thousand, one hundred sixty-six".