198380353 has 2 divisors, whose sum is σ = 198380354. Its totient is φ = 198380352.

The previous prime is 198380341. The next prime is 198380363. The reversal of 198380353 is 353083891.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162103824 + 36276529 = 12732^2 + 6023^2 .

It is a cyclic number.

It is not a de Polignac number, because 198380353 - 2⁵ = 198380321 is a prime.

It is not a weakly prime, because it can be changed into another prime (198380363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99190176 + 99190177.

It is an arithmetic number, because the mean of its divisors is an integer number (99190177).

Almost surely, 2^198380353 is an apocalyptic number.

It is an amenable number.

198380353 is a deficient number, since it is larger than the sum of its proper divisors (1).

198380353 is an equidigital number, since it uses as much as digits as its factorization.

198380353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 198380353 is about 14084.7560504256. The cubic root of 198380353 is about 583.2206414871.

The spelling of 198380353 in words is "one hundred ninety-eight million, three hundred eighty thousand, three hundred fifty-three".