12090132 has 36 divisors (see below), whose sum is σ = 30759456. Its totient is φ = 4003920.

The previous prime is 12090131. The next prime is 12090151. The reversal of 12090132 is 23109021.

It is a happy number.

12090132 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 tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12090131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5007 + ... + 7017.

Almost surely, 2^12090132 is an apocalyptic number.

12090132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12090132 is an abundant number, since it is smaller than the sum of its proper divisors (18669324).

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

12090132 is a wasteful number, since it uses less digits than its factorization.

12090132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188 (or 2183 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 12090132 is about 3477.0867116021. The cubic root of 12090132 is about 229.5146159544.

Adding to 12090132 its reverse (23109021), we get a palindrome (35199153).

The spelling of 12090132 in words is "twelve million, ninety thousand, one hundred thirty-two".