198229307 has 2 divisors, whose sum is σ = 198229308. Its totient is φ = 198229306.

The previous prime is 198229289. The next prime is 198229309. The reversal of 198229307 is 703922891.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198229307 - 2¹² = 198225211 is a prime.

Together with 198229309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198229309) 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, 99114653 + 99114654.

It is an arithmetic number, because the mean of its divisors is an integer number (99114654).

Almost surely, 2^198229307 is an apocalyptic number.

198229307 is a deficient number, since it is larger than the sum of its proper divisors (1).

198229307 is an equidigital number, since it uses as much as digits as its factorization.

198229307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 198229307 is about 14079.3929911769. The cubic root of 198229307 is about 583.0725832897.

The spelling of 198229307 in words is "one hundred ninety-eight million, two hundred twenty-nine thousand, three hundred seven".