199071263 has 2 divisors, whose sum is σ = 199071264. Its totient is φ = 199071262.

The previous prime is 199071203. The next prime is 199071289. The reversal of 199071263 is 362170991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199071263 - 2¹⁴ = 199054879 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199071203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99535631 + 99535632.

It is an arithmetic number, because the mean of its divisors is an integer number (99535632).

Almost surely, 2^199071263 is an apocalyptic number.

199071263 is a deficient number, since it is larger than the sum of its proper divisors (1).

199071263 is an equidigital number, since it uses as much as digits as its factorization.

199071263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 199071263 is about 14109.2616036418. The cubic root of 199071263 is about 583.8969283522.

The spelling of 199071263 in words is "one hundred ninety-nine million, seventy-one thousand, two hundred sixty-three".