12138152 has 32 divisors (see below), whose sum is σ = 24729600. Its totient is φ = 5552064.

The previous prime is 12138151. The next prime is 12138157. The reversal of 12138152 is 25183121.

It is a happy number.

12138152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12138151) 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, 12749 + ... + 13667.

It is an arithmetic number, because the mean of its divisors is an integer number (772800).

Almost surely, 2^12138152 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 12138152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12364800).

12138152 is an abundant number, since it is smaller than the sum of its proper divisors (12591448).

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

12138152 is a wasteful number, since it uses less digits than its factorization.

12138152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065 (or 1061 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 12138152 is about 3483.9850745949. The cubic root of 12138152 is about 229.8180792083.

The spelling of 12138152 in words is "twelve million, one hundred thirty-eight thousand, one hundred fifty-two".