199320559 has 2 divisors, whose sum is σ = 199320560. Its totient is φ = 199320558.

The previous prime is 199320497. The next prime is 199320581. The reversal of 199320559 is 955023991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199320559 - 2²⁷ = 65102831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199320859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99660279 + 99660280.

It is an arithmetic number, because the mean of its divisors is an integer number (99660280).

Almost surely, 2^199320559 is an apocalyptic number.

199320559 is a deficient number, since it is larger than the sum of its proper divisors (1).

199320559 is an equidigital number, since it uses as much as digits as its factorization.

199320559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 109350, while the sum is 43.

The square root of 199320559 is about 14118.0933202752. The cubic root of 199320559 is about 584.1405637988.

The spelling of 199320559 in words is "one hundred ninety-nine million, three hundred twenty thousand, five hundred fifty-nine".