12859144 has 16 divisors (see below), whose sum is σ = 24155820. Its totient is φ = 6417600.

The previous prime is 12859127. The next prime is 12859163. The reversal of 12859144 is 44195821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12744900 + 114244 = 3570^2 + 338^2 .

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, 4462 + ... + 6754.

Almost surely, 2^12859144 is an apocalyptic number.

It is an amenable number.

12859144 is a deficient number, since it is larger than the sum of its proper divisors (11296676).

12859144 is a wasteful number, since it uses less digits than its factorization.

12859144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000 (or 2996 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 12859144 is about 3585.9648631854. The cubic root of 12859144 is about 234.2811532780.

The spelling of 12859144 in words is "twelve million, eight hundred fifty-nine thousand, one hundred forty-four".