12551144 has 16 divisors (see below), whose sum is σ = 23704800. Its totient is φ = 6229872.

The previous prime is 12551131. The next prime is 12551179. The reversal of 12551144 is 44115521.

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, 4532 + ... + 6755.

It is an arithmetic number, because the mean of its divisors is an integer number (1481550).

Almost surely, 2^12551144 is an apocalyptic number.

It is an amenable number.

12551144 is a deficient number, since it is larger than the sum of its proper divisors (11153656).

12551144 is a wasteful number, since it uses less digits than its factorization.

12551144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11432 (or 11428 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 12551144 is about 3542.7593765312. The cubic root of 12551144 is about 232.3955302034.

Adding to 12551144 its reverse (44115521), we get a palindrome (56666665).

The spelling of 12551144 in words is "twelve million, five hundred fifty-one thousand, one hundred forty-four".