12338191 has 2 divisors, whose sum is σ = 12338192. Its totient is φ = 12338190.

The previous prime is 12338129. The next prime is 12338203. The reversal of 12338191 is 19183321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12338191 - 2²¹ = 10241039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12338101) 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, 6169095 + 6169096.

It is an arithmetic number, because the mean of its divisors is an integer number (6169096).

Almost surely, 2^12338191 is an apocalyptic number.

12338191 is a deficient number, since it is larger than the sum of its proper divisors (1).

12338191 is an equidigital number, since it uses as much as digits as its factorization.

12338191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 28.

The square root of 12338191 is about 3512.5761201716. The cubic root of 12338191 is about 231.0736882532.

The spelling of 12338191 in words is "twelve million, three hundred thirty-eight thousand, one hundred ninety-one".