12685118 has 16 divisors (see below), whose sum is σ = 19485360. Its totient is φ = 6191616.

The previous prime is 12685097. The next prime is 12685163. The reversal of 12685118 is 81158621.

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, 22496 + ... + 23052.

It is an arithmetic number, because the mean of its divisors is an integer number (1217835).

Almost surely, 2^12685118 is an apocalyptic number.

12685118 is a deficient number, since it is larger than the sum of its proper divisors (6800242).

12685118 is a wasteful number, since it uses less digits than its factorization.

12685118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811.

The product of its digits is 3840, while the sum is 32.

The square root of 12685118 is about 3561.6173292480. The cubic root of 12685118 is about 233.2194877734.

The spelling of 12685118 in words is "twelve million, six hundred eighty-five thousand, one hundred eighteen".