12642112 has 28 divisors (see below), whose sum is σ = 28671520. Its totient is φ = 5417856.

The previous prime is 12642109. The next prime is 12642121. The reversal of 12642112 is 21124621.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 12642112.

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, 13662 + ... + 14557.

Almost surely, 2^12642112 is an apocalyptic number.

It is an amenable number.

12642112 is an abundant number, since it is smaller than the sum of its proper divisors (16029408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12642112 is an equidigital number, since it uses as much as digits as its factorization.

12642112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28238 (or 28228 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 12642112 is about 3555.5747777258. The cubic root of 12642112 is about 232.9556302012.

Adding to 12642112 its reverse (21124621), we get a palindrome (33766733).

The spelling of 12642112 in words is "twelve million, six hundred forty-two thousand, one hundred twelve".