12183318 has 64 divisors (see below), whose sum is σ = 31288320. Its totient is φ = 3442176.

The previous prime is 12183287. The next prime is 12183329. The reversal of 12183318 is 81338121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12183291 and 12183300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63030 + ... + 63222.

It is an arithmetic number, because the mean of its divisors is an integer number (488880).

Almost surely, 2^12183318 is an apocalyptic number.

12183318 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12183318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15644160).

12183318 is an abundant number, since it is smaller than the sum of its proper divisors (19105002).

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

12183318 is a wasteful number, since it uses less digits than its factorization.

12183318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 372 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 12183318 is about 3490.4610010713. The cubic root of 12183318 is about 230.1027770029.

The spelling of 12183318 in words is "twelve million, one hundred eighty-three thousand, three hundred eighteen".