12639201 has 8 divisors (see below), whose sum is σ = 16872960. Its totient is φ = 8415792.

The previous prime is 12639181. The next prime is 12639203. The reversal of 12639201 is 10293621.

12639201 is digitally balanced in base 2 and base 3, because in such bases 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 not a de Polignac number, because 12639201 - 2⁷ = 12639073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12639203) 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, 960 + ... + 5118.

It is an arithmetic number, because the mean of its divisors is an integer number (2109120).

Almost surely, 2^12639201 is an apocalyptic number.

It is an amenable number.

12639201 is a deficient number, since it is larger than the sum of its proper divisors (4233759).

12639201 is a wasteful number, since it uses less digits than its factorization.

12639201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 12639201 is about 3555.1653969963. The cubic root of 12639201 is about 232.9377485399.

The spelling of 12639201 in words is "twelve million, six hundred thirty-nine thousand, two hundred one".