12913642 has 32 divisors (see below), whose sum is σ = 24261120. Its totient is φ = 5026560.

The previous prime is 12913601. The next prime is 12913643. The reversal of 12913642 is 24631921.

12913642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12913642.

It is not an unprimeable number, because it can be changed into a prime (12913643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5967 + ... + 7837.

It is an arithmetic number, because the mean of its divisors is an integer number (758160).

Almost surely, 2^12913642 is an apocalyptic number.

12913642 is a deficient number, since it is larger than the sum of its proper divisors (11347478).

12913642 is a wasteful number, since it uses less digits than its factorization.

12913642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926.

The product of its digits is 2592, while the sum is 28.

The square root of 12913642 is about 3593.5556208302. Note that the first 3 decimals coincide. The cubic root of 12913642 is about 234.6116537531.

The spelling of 12913642 in words is "twelve million, nine hundred thirteen thousand, six hundred forty-two".