199850023 has 2 divisors, whose sum is σ = 199850024. Its totient is φ = 199850022.

The previous prime is 199849981. The next prime is 199850033. The reversal of 199850023 is 320058991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199850023 - 2¹⁷ = 199718951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199850033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99925011 + 99925012.

It is an arithmetic number, because the mean of its divisors is an integer number (99925012).

Almost surely, 2^199850023 is an apocalyptic number.

199850023 is a deficient number, since it is larger than the sum of its proper divisors (1).

199850023 is an equidigital number, since it uses as much as digits as its factorization.

199850023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 199850023 is about 14136.8321416080. The cubic root of 199850023 is about 584.6573326189.

The spelling of 199850023 in words is "one hundred ninety-nine million, eight hundred fifty thousand, twenty-three".