199311929 has 2 divisors, whose sum is σ = 199311930. Its totient is φ = 199311928.

The previous prime is 199311911. The next prime is 199311941. The reversal of 199311929 is 929113991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182925625 + 16386304 = 13525^2 + 4048^2 .

It is a cyclic number.

It is not a de Polignac number, because 199311929 - 2¹² = 199307833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199311929.

It is not a weakly prime, because it can be changed into another prime (199311529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99655964 + 99655965.

It is an arithmetic number, because the mean of its divisors is an integer number (99655965).

Almost surely, 2^199311929 is an apocalyptic number.

It is an amenable number.

199311929 is a deficient number, since it is larger than the sum of its proper divisors (1).

199311929 is an equidigital number, since it uses as much as digits as its factorization.

199311929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39366, while the sum is 44.

The square root of 199311929 is about 14117.7876807947. The cubic root of 199311929 is about 584.1321331484.

The spelling of 199311929 in words is "one hundred ninety-nine million, three hundred eleven thousand, nine hundred twenty-nine".