12139596 has 72 divisors (see below), whose sum is σ = 35642880. Its totient is φ = 3411936.

The previous prime is 12139591. The next prime is 12139609. The reversal of 12139596 is 69593121.

12139596 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12139596.

It is not an unprimeable number, because it can be changed into a prime (12139591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16525 + ... + 17243.

It is an arithmetic number, because the mean of its divisors is an integer number (495040).

Almost surely, 2^12139596 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 12139596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17821440).

12139596 is an abundant number, since it is smaller than the sum of its proper divisors (23503284).

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

12139596 is a wasteful number, since it uses less digits than its factorization.

12139596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 798 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 12139596 is about 3484.1923023852. The cubic root of 12139596 is about 229.8271921866.

The spelling of 12139596 in words is "twelve million, one hundred thirty-nine thousand, five hundred ninety-six".