12664142 has 8 divisors (see below), whose sum is σ = 19011432. Its totient is φ = 6327000.

The previous prime is 12664129. The next prime is 12664147. The reversal of 12664142 is 24146621.

12664142 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 not an unprimeable number, because it can be changed into a prime (12664147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3017 + ... + 5867.

It is an arithmetic number, because the mean of its divisors is an integer number (2376429).

Almost surely, 2^12664142 is an apocalyptic number.

12664142 is a deficient number, since it is larger than the sum of its proper divisors (6347290).

12664142 is a wasteful number, since it uses less digits than its factorization.

12664142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074.

The product of its digits is 2304, while the sum is 26.

The square root of 12664142 is about 3558.6713812882. The cubic root of 12664142 is about 233.0908669512.

The spelling of 12664142 in words is "twelve million, six hundred sixty-four thousand, one hundred forty-two".