12315472 has 20 divisors (see below), whose sum is σ = 25697140. Its totient is φ = 5683968.

The previous prime is 12315469. The next prime is 12315481. The reversal of 12315472 is 27451321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4227136 + 8088336 = 2056^2 + 2844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29397 + ... + 29812.

It is an arithmetic number, because the mean of its divisors is an integer number (1284857).

Almost surely, 2^12315472 is an apocalyptic number.

It is an amenable number.

12315472 is an abundant number, since it is smaller than the sum of its proper divisors (13381668).

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

12315472 is a wasteful number, since it uses less digits than its factorization.

12315472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59230 (or 59224 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 12315472 is about 3509.3406788170. The cubic root of 12315472 is about 230.9317714830.

Adding to 12315472 its reverse (27451321), we get a palindrome (39766793).

The spelling of 12315472 in words is "twelve million, three hundred fifteen thousand, four hundred seventy-two".