12315475 has 6 divisors (see below), whose sum is σ = 15271220. Its totient is φ = 9852360.

The previous prime is 12315469. The next prime is 12315481. The reversal of 12315475 is 57451321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12315469) and next prime (12315481).

It is not a de Polignac number, because 12315475 - 2³ = 12315467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246285 + ... + 246334.

Almost surely, 2^12315475 is an apocalyptic number.

12315475 is a deficient number, since it is larger than the sum of its proper divisors (2955745).

12315475 is an equidigital number, since it uses as much as digits as its factorization.

12315475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492629 (or 492624 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 12315475 is about 3509.3411062477. The cubic root of 12315475 is about 230.9317902343.

Adding to 12315475 its reverse (57451321), we get a palindrome (69766796).

The spelling of 12315475 in words is "twelve million, three hundred fifteen thousand, four hundred seventy-five".