199529023 has 2 divisors, whose sum is σ = 199529024. Its totient is φ = 199529022.

The previous prime is 199529009. The next prime is 199529039. The reversal of 199529023 is 320925991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199529023 - 2⁵ = 199528991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199529003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99764511 + 99764512.

It is an arithmetic number, because the mean of its divisors is an integer number (99764512).

Almost surely, 2^199529023 is an apocalyptic number.

199529023 is a deficient number, since it is larger than the sum of its proper divisors (1).

199529023 is an equidigital number, since it uses as much as digits as its factorization.

199529023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 199529023 is about 14125.4742575249. The cubic root of 199529023 is about 584.3441384676.

The spelling of 199529023 in words is "one hundred ninety-nine million, five hundred twenty-nine thousand, twenty-three".