199373563 has 2 divisors, whose sum is σ = 199373564. Its totient is φ = 199373562.

The previous prime is 199373549. The next prime is 199373597. The reversal of 199373563 is 365373991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199373563 - 2⁹ = 199373051 is a prime.

It is not a weakly prime, because it can be changed into another prime (199373533) 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, 99686781 + 99686782.

It is an arithmetic number, because the mean of its divisors is an integer number (99686782).

Almost surely, 2^199373563 is an apocalyptic number.

199373563 is a deficient number, since it is larger than the sum of its proper divisors (1).

199373563 is an equidigital number, since it uses as much as digits as its factorization.

199373563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 459270, while the sum is 46.

The square root of 199373563 is about 14119.9703611587. The cubic root of 199373563 is about 584.1923380906.

The spelling of 199373563 in words is "one hundred ninety-nine million, three hundred seventy-three thousand, five hundred sixty-three".