12992188 has 12 divisors (see below), whose sum is σ = 24803352. Its totient is φ = 5905520.

The previous prime is 12992179. The next prime is 12992197. The reversal of 12992188 is 88129921.

It is an interprime number because it is at equal distance from previous prime (12992179) and next prime (12992197).

It is a self number, because there is not a number n which added to its sum of digits gives 12992188.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147595 + ... + 147682.

It is an arithmetic number, because the mean of its divisors is an integer number (2066946).

Almost surely, 2^12992188 is an apocalyptic number.

It is an amenable number.

12992188 is a deficient number, since it is larger than the sum of its proper divisors (11811164).

12992188 is a wasteful number, since it uses less digits than its factorization.

12992188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295292 (or 295290 counting only the distinct ones).

The product of its digits is 20736, while the sum is 40.

The square root of 12992188 is about 3604.4677831824. The cubic root of 12992188 is about 235.0863602921.

The spelling of 12992188 in words is "twelve million, nine hundred ninety-two thousand, one hundred eighty-eight".