12183213 has 24 divisors (see below), whose sum is σ = 19193952. Its totient is φ = 6852384.

The previous prime is 12183181. The next prime is 12183221. The reversal of 12183213 is 31238121.

It is not a de Polignac number, because 12183213 - 2⁵ = 12183181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12183213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12183013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9231 + ... + 10467.

It is an arithmetic number, because the mean of its divisors is an integer number (799748).

Almost surely, 2^12183213 is an apocalyptic number.

It is an amenable number.

12183213 is a deficient number, since it is larger than the sum of its proper divisors (7010739).

12183213 is a wasteful number, since it uses less digits than its factorization.

12183213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321 (or 1314 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 12183213 is about 3490.4459600458. The cubic root of 12183213 is about 230.1021159662.

The spelling of 12183213 in words is "twelve million, one hundred eighty-three thousand, two hundred thirteen".