12133928 has 16 divisors (see below), whose sum is σ = 23366580. Its totient is φ = 5902848.

The previous prime is 12133897. The next prime is 12133931. The reversal of 12133928 is 82933121.

It can be written as a sum of positive squares in 2 ways, for example, as 12124324 + 9604 = 3482^2 + 98^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12133928.

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, 20201 + ... + 20792.

Almost surely, 2^12133928 is an apocalyptic number.

It is an amenable number.

12133928 is a deficient number, since it is larger than the sum of its proper divisors (11232652).

12133928 is a wasteful number, since it uses less digits than its factorization.

12133928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41036 (or 41032 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 12133928 is about 3483.3788194797. The cubic root of 12133928 is about 229.7914177035.

The spelling of 12133928 in words is "twelve million, one hundred thirty-three thousand, nine hundred twenty-eight".