198500371 has 2 divisors, whose sum is σ = 198500372. Its totient is φ = 198500370.

The previous prime is 198500339. The next prime is 198500383. The reversal of 198500371 is 173005891.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198500371 - 2⁵ = 198500339 is a prime.

It is not a weakly prime, because it can be changed into another prime (198500321) 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, 99250185 + 99250186.

It is an arithmetic number, because the mean of its divisors is an integer number (99250186).

Almost surely, 2^198500371 is an apocalyptic number.

198500371 is a deficient number, since it is larger than the sum of its proper divisors (1).

198500371 is an equidigital number, since it uses as much as digits as its factorization.

198500371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 198500371 is about 14089.0159698965. The cubic root of 198500371 is about 583.3382318682.

The spelling of 198500371 in words is "one hundred ninety-eight million, five hundred thousand, three hundred seventy-one".