12544631 has 4 divisors (see below), whose sum is σ = 13685064. Its totient is φ = 11404200.

The previous prime is 12544621. The next prime is 12544663. The reversal of 12544631 is 13644521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12544631 - 2¹⁰ = 12543607 is a prime.

It is a super-2 number, since 2×12544631² = 314735533852322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12544631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12544601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570200 + ... + 570221.

It is an arithmetic number, because the mean of its divisors is an integer number (3421266).

Almost surely, 2^12544631 is an apocalyptic number.

12544631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12544631 is a deficient number, since it is larger than the sum of its proper divisors (1140433).

12544631 is a wasteful number, since it uses less digits than its factorization.

12544631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140432.

The product of its digits is 2880, while the sum is 26.

The square root of 12544631 is about 3541.8400585007. The cubic root of 12544631 is about 232.3553252634.

It can be divided in two parts, 1254 and 4631, that added together give a palindrome (5885).

The spelling of 12544631 in words is "twelve million, five hundred forty-four thousand, six hundred thirty-one".