12133524 has 72 divisors (see below), whose sum is σ = 31809792. Its totient is φ = 3594240.

The previous prime is 12133523. The next prime is 12133543. The reversal of 12133524 is 42533121.

It is a self number, because there is not a number n which added to its sum of digits gives 12133524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133523) 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, 62772 + ... + 62964.

Almost surely, 2^12133524 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 12133524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15904896).

12133524 is an abundant number, since it is smaller than the sum of its proper divisors (19676268).

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

12133524 is a wasteful number, since it uses less digits than its factorization.

12133524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 242 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 12133524 is about 3483.3208293236. The cubic root of 12133524 is about 229.7888673679.

Adding to 12133524 its reverse (42533121), we get a palindrome (54666645).

The spelling of 12133524 in words is "twelve million, one hundred thirty-three thousand, five hundred twenty-four".