199265023 has 2 divisors, whose sum is σ = 199265024. Its totient is φ = 199265022.

The previous prime is 199264999. The next prime is 199265029. The reversal of 199265023 is 320562991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199265023 - 2⁹ = 199264511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199265029) 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, 99632511 + 99632512.

It is an arithmetic number, because the mean of its divisors is an integer number (99632512).

Almost surely, 2^199265023 is an apocalyptic number.

199265023 is a deficient number, since it is larger than the sum of its proper divisors (1).

199265023 is an equidigital number, since it uses as much as digits as its factorization.

199265023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 199265023 is about 14116.1263454249. The cubic root of 199265023 is about 584.0863064023.

The spelling of 199265023 in words is "one hundred ninety-nine million, two hundred sixty-five thousand, twenty-three".