115916918 has 16 divisors (see below), whose sum is σ = 195392736. Its totient is φ = 51173760.

The previous prime is 115916861. The next prime is 115916923. The reversal of 115916918 is 819619511.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 96323 + ... + 97518.

It is an arithmetic number, because the mean of its divisors is an integer number (12212046).

Almost surely, 2^115916918 is an apocalyptic number.

115916918 is a deficient number, since it is larger than the sum of its proper divisors (79475818).

115916918 is a wasteful number, since it uses less digits than its factorization.

115916918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193879.

The product of its digits is 19440, while the sum is 41.

The square root of 115916918 is about 10766.4719383835. The cubic root of 115916918 is about 487.5834341527.

The spelling of 115916918 in words is "one hundred fifteen million, nine hundred sixteen thousand, nine hundred eighteen".