12816475 has 12 divisors (see below), whose sum is σ = 18163024. Its totient is φ = 8788320.

The previous prime is 12816473. The next prime is 12816481. The reversal of 12816475 is 57461821.

It is not a de Polignac number, because 12816475 - 2¹ = 12816473 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12816475.

It is not an unprimeable number, because it can be changed into a prime (12816473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36444 + ... + 36793.

Almost surely, 2^12816475 is an apocalyptic number.

12816475 is a deficient number, since it is larger than the sum of its proper divisors (5346549).

12816475 is an equidigital number, since it uses as much as digits as its factorization.

12816475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73254 (or 73249 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 12816475 is about 3580.0104748450. The cubic root of 12816475 is about 234.0217368465.

The spelling of 12816475 in words is "twelve million, eight hundred sixteen thousand, four hundred seventy-five".