12985164 has 24 divisors (see below), whose sum is σ = 33665520. Its totient is φ = 4328352.

The previous prime is 12985163. The next prime is 12985171. The reversal of 12985164 is 46158921.

It is a super-2 number, since 2×12985164² = 337228968213792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12985163) 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, 60009 + ... + 60224.

It is an arithmetic number, because the mean of its divisors is an integer number (1402730).

Almost surely, 2^12985164 is an apocalyptic number.

It is an amenable number.

12985164 is an abundant number, since it is smaller than the sum of its proper divisors (20680356).

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

12985164 is a wasteful number, since it uses less digits than its factorization.

12985164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120246 (or 120238 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 12985164 is about 3603.4933051138. The cubic root of 12985164 is about 235.0439875407.

The spelling of 12985164 in words is "twelve million, nine hundred eighty-five thousand, one hundred sixty-four".