12315532 has 6 divisors (see below), whose sum is σ = 21552188. Its totient is φ = 6157764.

The previous prime is 12315529. The next prime is 12315559. The reversal of 12315532 is 23551321.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1539438 + ... + 1539445.

Almost surely, 2^12315532 is an apocalyptic number.

It is an amenable number.

12315532 is a deficient number, since it is larger than the sum of its proper divisors (9236656).

12315532 is a wasteful number, since it uses less digits than its factorization.

12315532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078887 (or 3078885 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 12315532 is about 3509.3492274209. The cubic root of 12315532 is about 230.9321465095.

Adding to 12315532 its reverse (23551321), we get a palindrome (35866853).

The spelling of 12315532 in words is "twelve million, three hundred fifteen thousand, five hundred thirty-two".