12243188 has 12 divisors (see below), whose sum is σ = 21777252. Its totient is φ = 6021120.

The previous prime is 12243167. The next prime is 12243193. The reversal of 12243188 is 88134221.

It can be written as a sum of positive squares in 2 ways, for example, as 7171684 + 5071504 = 2678^2 + 2252^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12243188.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 24845 + ... + 25332.

It is an arithmetic number, because the mean of its divisors is an integer number (1814771).

Almost surely, 2^12243188 is an apocalyptic number.

It is an amenable number.

12243188 is a deficient number, since it is larger than the sum of its proper divisors (9534064).

12243188 is a wasteful number, since it uses less digits than its factorization.

12243188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50242 (or 50240 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 12243188 is about 3499.0267218185. The cubic root of 12243188 is about 230.4790770311.

The spelling of 12243188 in words is "twelve million, two hundred forty-three thousand, one hundred eighty-eight".