12902144 has 36 divisors (see below), whose sum is σ = 26061000. Its totient is φ = 6374400.

The previous prime is 12902137. The next prime is 12902189. The reversal of 12902144 is 44120921.

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, 25607 + ... + 26105.

Almost surely, 2^12902144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12902144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13030500).

12902144 is an abundant number, since it is smaller than the sum of its proper divisors (13158856).

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

12902144 is an equidigital number, since it uses as much as digits as its factorization.

12902144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 12902144 is about 3591.9554562940. The cubic root of 12902144 is about 234.5420021963.

The spelling of 12902144 in words is "twelve million, nine hundred two thousand, one hundred forty-four".