12685112 has 32 divisors (see below), whose sum is σ = 26507520. Its totient is φ = 5641440.

The previous prime is 12685097. The next prime is 12685163. The reversal of 12685112 is 21158621.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603 + ... + 5669.

It is an arithmetic number, because the mean of its divisors is an integer number (828360).

Almost surely, 2^12685112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12685112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13253760).

12685112 is an abundant number, since it is smaller than the sum of its proper divisors (13822408).

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

12685112 is a wasteful number, since it uses less digits than its factorization.

12685112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131 (or 3127 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 12685112 is about 3561.6164869340. The cubic root of 12685112 is about 233.2194510028.

The spelling of 12685112 in words is "twelve million, six hundred eighty-five thousand, one hundred twelve".