12531332 has 12 divisors (see below), whose sum is σ = 23923536. Its totient is φ = 5696040.

The previous prime is 12531331. The next prime is 12531341. The reversal of 12531332 is 23313521.

It is not an unprimeable number, because it can be changed into a prime (12531331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142358 + ... + 142445.

It is an arithmetic number, because the mean of its divisors is an integer number (1993628).

Almost surely, 2^12531332 is an apocalyptic number.

It is an amenable number.

12531332 is a deficient number, since it is larger than the sum of its proper divisors (11392204).

12531332 is a wasteful number, since it uses less digits than its factorization.

12531332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284818 (or 284816 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 12531332 is about 3539.9621466903. The cubic root of 12531332 is about 232.2731869078.

Adding to 12531332 its reverse (23313521), we get a palindrome (35844853).

The spelling of 12531332 in words is "twelve million, five hundred thirty-one thousand, three hundred thirty-two".