12138136 has 32 divisors (see below), whose sum is σ = 24300000. Its totient is φ = 5664256.

The previous prime is 12138127. The next prime is 12138151. The reversal of 12138136 is 63183121.

12138136 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 12138136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19965 + ... + 20563.

It is an arithmetic number, because the mean of its divisors is an integer number (759375).

Almost surely, 2^12138136 is an apocalyptic number.

It is an amenable number.

12138136 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

12138136 is a wasteful number, since it uses less digits than its factorization.

12138136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 767 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 12138136 is about 3483.9827783731. The cubic root of 12138136 is about 229.8179782294.

The spelling of 12138136 in words is "twelve million, one hundred thirty-eight thousand, one hundred thirty-six".