12502144 has 16 divisors (see below), whose sum is σ = 24906870. Its totient is φ = 6251008.

The previous prime is 12502129. The next prime is 12502151. The reversal of 12502144 is 44120521.

It can be written as a sum of positive squares in only one way, i.e., 8340544 + 4161600 = 2888^2 + 2040^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48709 + ... + 48964.

Almost surely, 2^12502144 is an apocalyptic number.

It is an amenable number.

12502144 is a deficient number, since it is larger than the sum of its proper divisors (12404726).

12502144 is an frugal number, since it uses more digits than its factorization.

12502144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97687 (or 97675 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 12502144 is about 3535.8371003201. The cubic root of 12502144 is about 232.0927096774.

Adding to 12502144 its reverse (44120521), we get a palindrome (56622665).

The spelling of 12502144 in words is "twelve million, five hundred two thousand, one hundred forty-four".