12531376 has 40 divisors (see below), whose sum is σ = 28529424. Its totient is φ = 5256960.

The previous prime is 12531359. The next prime is 12531383. The reversal of 12531376 is 67313521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451 + ... + 5026.

Almost surely, 2^12531376 is an apocalyptic number.

12531376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12531376 is an abundant number, since it is smaller than the sum of its proper divisors (15998048).

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

12531376 is a wasteful number, since it uses less digits than its factorization.

12531376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509 (or 5503 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 12531376 is about 3539.9683614405. The cubic root of 12531376 is about 232.2734587599.

Adding to 12531376 its reverse (67313521), we get a palindrome (79844897).

The spelling of 12531376 in words is "twelve million, five hundred thirty-one thousand, three hundred seventy-six".