12566542 has 8 divisors (see below), whose sum is σ = 18874800. Its totient is φ = 6274944.

The previous prime is 12566539. The next prime is 12566551. The reversal of 12566542 is 24566521.

12566542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 2067 + ... + 5422.

It is an arithmetic number, because the mean of its divisors is an integer number (2359350).

Almost surely, 2^12566542 is an apocalyptic number.

12566542 is a deficient number, since it is larger than the sum of its proper divisors (6308258).

12566542 is an equidigital number, since it uses as much as digits as its factorization.

12566542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8330.

The product of its digits is 14400, while the sum is 31.

The square root of 12566542 is about 3544.9318752269. The cubic root of 12566542 is about 232.4905272280.

The spelling of 12566542 in words is "twelve million, five hundred sixty-six thousand, five hundred forty-two".