12685145 has 16 divisors (see below), whose sum is σ = 17584128. Its totient is φ = 8682240.

The previous prime is 12685097. The next prime is 12685163. The reversal of 12685145 is 54158621.

12685145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12685145 is a prime.

It is a Duffinian 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, 5849 + ... + 7718.

It is an arithmetic number, because the mean of its divisors is an integer number (1099008).

Almost surely, 2^12685145 is an apocalyptic number.

It is an amenable number.

12685145 is a deficient number, since it is larger than the sum of its proper divisors (4898983).

12685145 is a wasteful number, since it uses less digits than its factorization.

12685145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13600.

The product of its digits is 9600, while the sum is 32.

The square root of 12685145 is about 3561.6211196589. The cubic root of 12685145 is about 233.2196532408.

The spelling of 12685145 in words is "twelve million, six hundred eighty-five thousand, one hundred forty-five".