12644125 has 32 divisors (see below), whose sum is σ = 17611776. Its totient is φ = 9000000.

The previous prime is 12644119. The next prime is 12644129. The reversal of 12644125 is 52144621.

It is a happy number.

It is not a de Polignac number, because 12644125 - 2⁹ = 12643613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 12644125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12644129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50250 + ... + 50500.

It is an arithmetic number, because the mean of its divisors is an integer number (550368).

Almost surely, 2^12644125 is an apocalyptic number.

It is an amenable number.

12644125 is a deficient number, since it is larger than the sum of its proper divisors (4967651).

12644125 is a wasteful number, since it uses less digits than its factorization.

12644125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 300 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 12644125 is about 3555.8578430528. The cubic root of 12644125 is about 232.9679940319.

Adding to 12644125 its reverse (52144621), we get a palindrome (64788746).

It can be divided in two parts, 12644 and 125, that added together give a square (12769 = 113²).

The spelling of 12644125 in words is "twelve million, six hundred forty-four thousand, one hundred twenty-five".