199023229 has 2 divisors, whose sum is σ = 199023230. Its totient is φ = 199023228.

The previous prime is 199023217. The next prime is 199023257. The reversal of 199023229 is 922320991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196140025 + 2883204 = 14005^2 + 1698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199023229 is a prime.

It is a super-2 number, since 2×199023229² = 79220491363172882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199023329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99511614 + 99511615.

It is an arithmetic number, because the mean of its divisors is an integer number (99511615).

Almost surely, 2^199023229 is an apocalyptic number.

It is an amenable number.

199023229 is a deficient number, since it is larger than the sum of its proper divisors (1).

199023229 is an equidigital number, since it uses as much as digits as its factorization.

199023229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 199023229 is about 14107.5592857163. The cubic root of 199023229 is about 583.8499616517.

The spelling of 199023229 in words is "one hundred ninety-nine million, twenty-three thousand, two hundred twenty-nine".