12012144 has 20 divisors (see below), whose sum is σ = 31031496. Its totient is φ = 4004032.

The previous prime is 12012137. The next prime is 12012157. The reversal of 12012144 is 44121021.

12012144 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125079 + ... + 125174.

Almost surely, 2^12012144 is an apocalyptic number.

It is an amenable number.

12012144 is an abundant number, since it is smaller than the sum of its proper divisors (19019352).

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

12012144 is a wasteful number, since it uses less digits than its factorization.

12012144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250264 (or 250258 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 12012144 is about 3465.8540073119. The cubic root of 12012144 is about 229.0200525273.

Adding to 12012144 its reverse (44121021), we get a palindrome (56133165).

The spelling of 12012144 in words is "twelve million, twelve thousand, one hundred forty-four".