12531412 has 48 divisors (see below), whose sum is σ = 24675840. Its totient is φ = 5540832.

The previous prime is 12531391. The next prime is 12531437. The reversal of 12531412 is 21413521.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12531412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117063 + ... + 117169.

It is an arithmetic number, because the mean of its divisors is an integer number (514080).

Almost surely, 2^12531412 is an apocalyptic number.

It is an amenable number.

12531412 is a deficient number, since it is larger than the sum of its proper divisors (12144428).

12531412 is a wasteful number, since it uses less digits than its factorization.

12531412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 218 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 12531412 is about 3539.9734462281. The cubic root of 12531412 is about 232.2736811839.

Adding to 12531412 its reverse (21413521), we get a palindrome (33944933).

The spelling of 12531412 in words is "twelve million, five hundred thirty-one thousand, four hundred twelve".