12564263 has 8 divisors (see below), whose sum is σ = 13296000. Its totient is φ = 11839608.

The previous prime is 12564259. The next prime is 12564281. The reversal of 12564263 is 36246521.

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 12564263 - 2² = 12564259 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 (12563263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2120 + ... + 5442.

It is an arithmetic number, because the mean of its divisors is an integer number (1662000).

Almost surely, 2^12564263 is an apocalyptic number.

12564263 is a deficient number, since it is larger than the sum of its proper divisors (731737).

12564263 is a wasteful number, since it uses less digits than its factorization.

12564263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541.

The product of its digits is 8640, while the sum is 29.

The square root of 12564263 is about 3544.6104158285. The cubic root of 12564263 is about 232.4764719707.

The spelling of 12564263 in words is "twelve million, five hundred sixty-four thousand, two hundred sixty-three".