12578144 has 24 divisors (see below), whose sum is σ = 25369848. Its totient is φ = 6135040.

The previous prime is 12578131. The next prime is 12578161. The reversal of 12578144 is 44187521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 12578144.

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, 3482 + ... + 6105.

It is an arithmetic number, because the mean of its divisors is an integer number (1057077).

Almost surely, 2^12578144 is an apocalyptic number.

It is an amenable number.

12578144 is an abundant number, since it is smaller than the sum of its proper divisors (12791704).

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

12578144 is an equidigital number, since it uses as much as digits as its factorization.

12578144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9638 (or 9630 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 12578144 is about 3546.5679184248. The cubic root of 12578144 is about 232.5620538107.

The spelling of 12578144 in words is "twelve million, five hundred seventy-eight thousand, one hundred forty-four".