12188243 has 2 divisors, whose sum is σ = 12188244. Its totient is φ = 12188242.

The previous prime is 12188237. The next prime is 12188257. The reversal of 12188243 is 34288121.

12188243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12188243 is a prime.

It is not a weakly prime, because it can be changed into another prime (12188213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6094121 + 6094122.

It is an arithmetic number, because the mean of its divisors is an integer number (6094122).

Almost surely, 2^12188243 is an apocalyptic number.

12188243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12188243 is an equidigital number, since it uses as much as digits as its factorization.

12188243 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12188243 is about 3491.1664239907. The cubic root of 12188243 is about 230.1337785059.

The spelling of 12188243 in words is "twelve million, one hundred eighty-eight thousand, two hundred forty-three".