12564541 has 8 divisors (see below), whose sum is σ = 13895424. Its totient is φ = 11265120.

The previous prime is 12564527. The next prime is 12564599. The reversal of 12564541 is 14546521.

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

It is a cyclic number.

It is not a de Polignac number, because 12564541 - 2⁷ = 12564413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12564521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7021 + ... + 8626.

It is an arithmetic number, because the mean of its divisors is an integer number (1736928).

Almost surely, 2^12564541 is an apocalyptic number.

12564541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12564541 is a deficient number, since it is larger than the sum of its proper divisors (1330883).

12564541 is a wasteful number, since it uses less digits than its factorization.

12564541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15731.

The product of its digits is 4800, while the sum is 28.

The square root of 12564541 is about 3544.6496300763. The cubic root of 12564541 is about 232.4781865688.

The spelling of 12564541 in words is "twelve million, five hundred sixty-four thousand, five hundred forty-one".