199389011 has 2 divisors, whose sum is σ = 199389012. Its totient is φ = 199389010.

The previous prime is 199388989. The next prime is 199389023. The reversal of 199389011 is 110983991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199389011 - 2⁶ = 199388947 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199389011.

It is not a weakly prime, because it can be changed into another prime (199389511) 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, 99694505 + 99694506.

It is an arithmetic number, because the mean of its divisors is an integer number (99694506).

Almost surely, 2^199389011 is an apocalyptic number.

199389011 is a deficient number, since it is larger than the sum of its proper divisors (1).

199389011 is an equidigital number, since it uses as much as digits as its factorization.

199389011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 41.

The square root of 199389011 is about 14120.5173772068. The cubic root of 199389011 is about 584.2074259656.

The spelling of 199389011 in words is "one hundred ninety-nine million, three hundred eighty-nine thousand, eleven".