199939063 has 2 divisors, whose sum is σ = 199939064. Its totient is φ = 199939062.

The previous prime is 199939039. The next prime is 199939073. The reversal of 199939063 is 360939991.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (360939991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199939063 - 2²¹ = 197841911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 199938998 and 199939016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199939073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99969531 + 99969532.

It is an arithmetic number, because the mean of its divisors is an integer number (99969532).

Almost surely, 2^199939063 is an apocalyptic number.

199939063 is a deficient number, since it is larger than the sum of its proper divisors (1).

199939063 is an equidigital number, since it uses as much as digits as its factorization.

199939063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 354294, while the sum is 49.

The square root of 199939063 is about 14139.9810113027. The cubic root of 199939063 is about 584.7441479865.

The spelling of 199939063 in words is "one hundred ninety-nine million, nine hundred thirty-nine thousand, sixty-three".