199364563 has 2 divisors, whose sum is σ = 199364564. Its totient is φ = 199364562.

The previous prime is 199364551. The next prime is 199364567. The reversal of 199364563 is 365463991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199364563 - 2⁹ = 199364051 is a prime.

It is not a weakly prime, because it can be changed into another prime (199364567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99682281 + 99682282.

It is an arithmetic number, because the mean of its divisors is an integer number (99682282).

Almost surely, 2^199364563 is an apocalyptic number.

199364563 is a deficient number, since it is larger than the sum of its proper divisors (1).

199364563 is an equidigital number, since it uses as much as digits as its factorization.

199364563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 46.

The square root of 199364563 is about 14119.6516600092. The cubic root of 199364563 is about 584.1835475401.

The spelling of 199364563 in words is "one hundred ninety-nine million, three hundred sixty-four thousand, five hundred sixty-three".