12139036 has 24 divisors (see below), whose sum is σ = 26146400. Its totient is φ = 4802112.

The previous prime is 12139033. The next prime is 12139051. The reversal of 12139036 is 63093121.

12139036 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 12139036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12139033) 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, 16311 + ... + 17038.

Almost surely, 2^12139036 is an apocalyptic number.

It is an amenable number.

12139036 is an abundant number, since it is smaller than the sum of its proper divisors (14007364).

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

12139036 is a wasteful number, since it uses less digits than its factorization.

12139036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33373 (or 33371 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 12139036 is about 3484.1119385003. Note that the first 3 decimals coincide. The cubic root of 12139036 is about 229.8236581533.

The spelling of 12139036 in words is "twelve million, one hundred thirty-nine thousand, thirty-six".