12194243 has 2 divisors, whose sum is σ = 12194244. Its totient is φ = 12194242.

The previous prime is 12194227. The next prime is 12194249. The reversal of 12194243 is 34249121.

12194243 is nontrivially palindromic in base 11.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12194243 - 2⁴ = 12194227 is a prime.

It is not a weakly prime, because it can be changed into another prime (12194249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6097121 + 6097122.

It is an arithmetic number, because the mean of its divisors is an integer number (6097122).

Almost surely, 2^12194243 is an apocalyptic number.

12194243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12194243 is an equidigital number, since it uses as much as digits as its factorization.

12194243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 12194243 is about 3492.0256299174. The cubic root of 12194243 is about 230.1715355519.

The spelling of 12194243 in words is "twelve million, one hundred ninety-four thousand, two hundred forty-three".