12531244 has 36 divisors (see below), whose sum is σ = 25539192. Its totient is φ = 5357440.

The previous prime is 12531221. The next prime is 12531247. The reversal of 12531244 is 44213521.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12531247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7467 + ... + 8989.

It is an arithmetic number, because the mean of its divisors is an integer number (709422).

Almost surely, 2^12531244 is an apocalyptic number.

It is an amenable number.

12531244 is an abundant number, since it is smaller than the sum of its proper divisors (13007948).

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

12531244 is a wasteful number, since it uses less digits than its factorization.

12531244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 1553 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 12531244 is about 3539.9497171570. The cubic root of 12531244 is about 232.2726432016.

Adding to 12531244 its reverse (44213521), we get a palindrome (56744765).

The spelling of 12531244 in words is "twelve million, five hundred thirty-one thousand, two hundred forty-four".