12706144 has 24 divisors (see below), whose sum is σ = 27290088. Its totient is φ = 5775360.

The previous prime is 12706139. The next prime is 12706151. The reversal of 12706144 is 44160721.

It is a super-2 number, since 2×12706144² = 322892190697472, which contains 22 as substring.

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, 17697 + ... + 18400.

It is an arithmetic number, because the mean of its divisors is an integer number (1137087).

Almost surely, 2^12706144 is an apocalyptic number.

It is an amenable number.

12706144 is an abundant number, since it is smaller than the sum of its proper divisors (14583944).

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

12706144 is a wasteful number, since it uses less digits than its factorization.

12706144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36118 (or 36110 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 12706144 is about 3564.5678559960. The cubic root of 12706144 is about 233.3482729663.

Adding to 12706144 its reverse (44160721), we get a palindrome (56866865).

The spelling of 12706144 in words is "twelve million, seven hundred six thousand, one hundred forty-four".