12885144 has 32 divisors (see below), whose sum is σ = 32901120. Its totient is φ = 4203296.

The previous prime is 12885121. The next prime is 12885149. The reversal of 12885144 is 44158821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12885149) 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, 4584 + ... + 6839.

It is an arithmetic number, because the mean of its divisors is an integer number (1028160).

Almost surely, 2^12885144 is an apocalyptic number.

It is an amenable number.

12885144 is an abundant number, since it is smaller than the sum of its proper divisors (20015976).

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

12885144 is a wasteful number, since it uses less digits than its factorization.

12885144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11479 (or 11475 counting only the distinct ones).

The product of its digits is 10240, while the sum is 33.

The square root of 12885144 is about 3589.5882772262. The cubic root of 12885144 is about 234.4389452543.

The spelling of 12885144 in words is "twelve million, eight hundred eighty-five thousand, one hundred forty-four".