12564486 has 96 divisors (see below), whose sum is σ = 32348160. Its totient is φ = 3484800.

The previous prime is 12564481. The next prime is 12564521. The reversal of 12564486 is 68446521.

12564486 is a `hidden beast` number, since 1 + 2 + 5 + 644 + 8 + 6 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12564486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12564481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 141130 + ... + 141218.

It is an arithmetic number, because the mean of its divisors is an integer number (336960).

Almost surely, 2^12564486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12564486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16174080).

12564486 is an abundant number, since it is smaller than the sum of its proper divisors (19783674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12564486 is a wasteful number, since it uses less digits than its factorization.

12564486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 159 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 12564486 is about 3544.6418718962. The cubic root of 12564486 is about 232.4778473517.

The spelling of 12564486 in words is "twelve million, five hundred sixty-four thousand, four hundred eighty-six".