13685018 has 16 divisors (see below), whose sum is σ = 21134400. Its totient is φ = 6643296.

The previous prime is 13685011. The next prime is 13685029. The reversal of 13685018 is 81058631.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13685011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9083 + ... + 10481.

It is an arithmetic number, because the mean of its divisors is an integer number (1320900).

Almost surely, 2^13685018 is an apocalyptic number.

13685018 is a deficient number, since it is larger than the sum of its proper divisors (7449382).

13685018 is a wasteful number, since it uses less digits than its factorization.

13685018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 13685018 is about 3699.3266954947. The cubic root of 13685018 is about 239.1929954922.

The spelling of 13685018 in words is "thirteen million, six hundred eighty-five thousand, eighteen".