12188027 has 2 divisors, whose sum is σ = 12188028. Its totient is φ = 12188026.

The previous prime is 12188021. The next prime is 12188069. The reversal of 12188027 is 72088121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12188027 - 2¹⁰ = 12187003 is a prime.

It is not a weakly prime, because it can be changed into another prime (12188021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6094013 + 6094014.

It is an arithmetic number, because the mean of its divisors is an integer number (6094014).

Almost surely, 2^12188027 is an apocalyptic number.

12188027 is a deficient number, since it is larger than the sum of its proper divisors (1).

12188027 is an equidigital number, since it uses as much as digits as its factorization.

12188027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 12188027 is about 3491.1354886340. The cubic root of 12188027 is about 230.1324190212.

The spelling of 12188027 in words is "twelve million, one hundred eighty-eight thousand, twenty-seven".