12199189 has 2 divisors, whose sum is σ = 12199190. Its totient is φ = 12199188.

The previous prime is 12199157. The next prime is 12199199. The reversal of 12199189 is 98199121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11168964 + 1030225 = 3342^2 + 1015^2 .

It is a cyclic number.

It is not a de Polignac number, because 12199189 - 2⁵ = 12199157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12199199) 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, 6099594 + 6099595.

It is an arithmetic number, because the mean of its divisors is an integer number (6099595).

Almost surely, 2^12199189 is an apocalyptic number.

It is an amenable number.

12199189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12199189 is an equidigital number, since it uses as much as digits as its factorization.

12199189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 40.

The square root of 12199189 is about 3492.7337430729. The cubic root of 12199189 is about 230.2026506317.

The spelling of 12199189 in words is "twelve million, one hundred ninety-nine thousand, one hundred eighty-nine".