12664213 has 8 divisors (see below), whose sum is σ = 13524480. Its totient is φ = 11832240.

The previous prime is 12664207. The next prime is 12664217. The reversal of 12664213 is 31246621.

12664213 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 cyclic number.

It is not a de Polignac number, because 12664213 - 2⁵ = 12664181 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 (12664217) 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, 6145 + ... + 7942.

It is an arithmetic number, because the mean of its divisors is an integer number (1690560).

Almost surely, 2^12664213 is an apocalyptic number.

It is an amenable number.

12664213 is a deficient number, since it is larger than the sum of its proper divisors (860267).

12664213 is a wasteful number, since it uses less digits than its factorization.

12664213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14147.

The product of its digits is 1728, while the sum is 25.

The square root of 12664213 is about 3558.6813569074. The cubic root of 12664213 is about 233.0913025491.

It can be divided in two parts, 12 and 664213, that added together give a square (664225 = 815²).

The spelling of 12664213 in words is "twelve million, six hundred sixty-four thousand, two hundred thirteen".