12162972 has 12 divisors (see below), whose sum is σ = 28380296. Its totient is φ = 4054320.

The previous prime is 12162971. The next prime is 12162991. The reversal of 12162972 is 27926121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12162971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506779 + ... + 506802.

Almost surely, 2^12162972 is an apocalyptic number.

12162972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12162972 is an abundant number, since it is smaller than the sum of its proper divisors (16217324).

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

12162972 is a wasteful number, since it uses less digits than its factorization.

12162972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013588 (or 1013586 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 12162972 is about 3487.5452685234. The cubic root of 12162972 is about 229.9746159762.

The spelling of 12162972 in words is "twelve million, one hundred sixty-two thousand, nine hundred seventy-two".