198000233 has 2 divisors, whose sum is σ = 198000234. Its totient is φ = 198000232.

The previous prime is 198000227. The next prime is 198000259. The reversal of 198000233 is 332000891.

It is an a-pointer prime, because the next prime (198000259) can be obtained adding 198000233 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178569769 + 19430464 = 13363^2 + 4408^2 .

It is a cyclic number.

It is not a de Polignac number, because 198000233 - 2⁴ = 198000217 is a prime.

It is not a weakly prime, because it can be changed into another prime (198000203) 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, 99000116 + 99000117.

It is an arithmetic number, because the mean of its divisors is an integer number (99000117).

Almost surely, 2^198000233 is an apocalyptic number.

It is an amenable number.

198000233 is a deficient number, since it is larger than the sum of its proper divisors (1).

198000233 is an equidigital number, since it uses as much as digits as its factorization.

198000233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 198000233 is about 14071.2555587623. The cubic root of 198000233 is about 582.8478969505.

The spelling of 198000233 in words is "one hundred ninety-eight million, two hundred thirty-three", and thus it is an aban number.