12865170 has 32 divisors (see below), whose sum is σ = 31597632. Its totient is φ = 3350592.

The previous prime is 12865157. The next prime is 12865189. The reversal of 12865170 is 7156821.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 3697 + ... + 6276.

It is an arithmetic number, because the mean of its divisors is an integer number (987426).

Almost surely, 2^12865170 is an apocalyptic number.

12865170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12865170 is an abundant number, since it is smaller than the sum of its proper divisors (18732462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12865170 is a wasteful number, since it uses less digits than its factorization.

12865170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10026.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 12865170 is about 3586.8049849413. The cubic root of 12865170 is about 234.3177435248.

The spelling of 12865170 in words is "twelve million, eight hundred sixty-five thousand, one hundred seventy".