12133213 has 8 divisors (see below), whose sum is σ = 12696768. Its totient is φ = 11572704.

The previous prime is 12133193. The next prime is 12133217. The reversal of 12133213 is 31233121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12133213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12481 + ... + 13417.

It is an arithmetic number, because the mean of its divisors is an integer number (1587096).

Almost surely, 2^12133213 is an apocalyptic number.

It is an amenable number.

12133213 is a deficient number, since it is larger than the sum of its proper divisors (563555).

12133213 is an equidigital number, since it uses as much as digits as its factorization.

12133213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523.

The product of its digits is 108, while the sum is 16.

The square root of 12133213 is about 3483.2761877290. The cubic root of 12133213 is about 229.7869040760.

Adding to 12133213 its reverse (31233121), we get a palindrome (43366334).

It can be divided in two parts, 12 and 133213, that added together give a square (133225 = 365²).

The spelling of 12133213 in words is "twelve million, one hundred thirty-three thousand, two hundred thirteen".