12108132 has 36 divisors (see below), whose sum is σ = 30732156. Its totient is φ = 4019520.

The previous prime is 12108113. The next prime is 12108133. The reversal of 12108132 is 23180121.

It can be written as a sum of positive squares in 2 ways, for example, as 3779136 + 8328996 = 1944^2 + 2886^2 .

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 not an unprimeable number, because it can be changed into a prime (12108133) 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, 10882 + ... + 11942.

It is an arithmetic number, because the mean of its divisors is an integer number (853671).

Almost surely, 2^12108132 is an apocalyptic number.

12108132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12108132 is an abundant number, since it is smaller than the sum of its proper divisors (18624024).

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

12108132 is a wasteful number, since it uses less digits than its factorization.

12108132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388 (or 1383 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 12108132 is about 3479.6741226730. The cubic root of 12108132 is about 229.6284612664.

Adding to 12108132 its reverse (23180121), we get a palindrome (35288253).

The spelling of 12108132 in words is "twelve million, one hundred eight thousand, one hundred thirty-two".