12133236 has 24 divisors (see below), whose sum is σ = 29542464. Its totient is φ = 3868480.

The previous prime is 12133217. The next prime is 12133241. The reversal of 12133236 is 63233121.

12133236 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 nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21705 + ... + 22256.

It is an arithmetic number, because the mean of its divisors is an integer number (1230936).

Almost surely, 2^12133236 is an apocalyptic number.

It is an amenable number.

12133236 is an abundant number, since it is smaller than the sum of its proper divisors (17409228).

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

12133236 is a wasteful number, since it uses less digits than its factorization.

12133236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43991 (or 43989 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 12133236 is about 3483.2794892170. The cubic root of 12133236 is about 229.7870492724.

Adding to 12133236 its reverse (63233121), we get a palindrome (75366357).

The spelling of 12133236 in words is "twelve million, one hundred thirty-three thousand, two hundred thirty-six".