13085618 has 16 divisors (see below), whose sum is σ = 24158400. Its totient is φ = 5176656.

The previous prime is 13085617. The next prime is 13085651. The reversal of 13085618 is 81658031.

It is not an unprimeable number, because it can be changed into a prime (13085617) 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, 35768 + ... + 36131.

It is an arithmetic number, because the mean of its divisors is an integer number (1509900).

Almost surely, 2^13085618 is an apocalyptic number.

13085618 is a deficient number, since it is larger than the sum of its proper divisors (11072782).

13085618 is a wasteful number, since it uses less digits than its factorization.

13085618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71921.

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

The square root of 13085618 is about 3617.4048708985. The cubic root of 13085618 is about 235.6485360190.

The spelling of 13085618 in words is "thirteen million, eighty-five thousand, six hundred eighteen".