12564049 has 4 divisors (see below), whose sum is σ = 13110336. Its totient is φ = 12017764.

The previous prime is 12564017. The next prime is 12564061. The reversal of 12564049 is 94046521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94046521 = 397 ⋅236893.

It is a cyclic number.

It is not a de Polignac number, because 12564049 - 2⁵ = 12564017 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 12564049.

It is not an unprimeable number, because it can be changed into a prime (12564449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273109 + ... + 273154.

It is an arithmetic number, because the mean of its divisors is an integer number (3277584).

Almost surely, 2^12564049 is an apocalyptic number.

It is an amenable number.

12564049 is a deficient number, since it is larger than the sum of its proper divisors (546287).

12564049 is an equidigital number, since it uses as much as digits as its factorization.

12564049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546286.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 12564049 is about 3544.5802290257. The cubic root of 12564049 is about 232.4751520830.

The spelling of 12564049 in words is "twelve million, five hundred sixty-four thousand, forty-nine".