12564494 has 8 divisors (see below), whose sum is σ = 18877320. Its totient is φ = 6272056.

The previous prime is 12564481. The next prime is 12564521. The reversal of 12564494 is 49446521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×12564494³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

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, 3449 + ... + 6084.

It is an arithmetic number, because the mean of its divisors is an integer number (2359665).

Almost surely, 2^12564494 is an apocalyptic number.

12564494 is a deficient number, since it is larger than the sum of its proper divisors (6312826).

12564494 is an equidigital number, since it uses as much as digits as its factorization.

12564494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10194.

The product of its digits is 34560, while the sum is 35.

The square root of 12564494 is about 3544.6430003598. The cubic root of 12564494 is about 232.4778966924.

The spelling of 12564494 in words is "twelve million, five hundred sixty-four thousand, four hundred ninety-four".