12180252 has 48 divisors (see below), whose sum is σ = 33367040. Its totient is φ = 3385152.

The previous prime is 12180251. The next prime is 12180283. The reversal of 12180252 is 25208121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12180251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149 + ... + 5067.

Almost surely, 2^12180252 is an apocalyptic number.

12180252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12180252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16683520).

12180252 is an abundant number, since it is smaller than the sum of its proper divisors (21186788).

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

12180252 is a wasteful number, since it uses less digits than its factorization.

12180252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970 (or 3968 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 12180252 is about 3490.0217764364. The cubic root of 12180252 is about 230.0834731673.

Adding to 12180252 its reverse (25208121), we get a palindrome (37388373).

The spelling of 12180252 in words is "twelve million, one hundred eighty thousand, two hundred fifty-two".