198303601 has 2 divisors, whose sum is σ = 198303602. Its totient is φ = 198303600.

The previous prime is 198303583. The next prime is 198303643. The reversal of 198303601 is 106303891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138086001 + 60217600 = 11751^2 + 7760^2 .

It is an emirp because it is prime and its reverse (106303891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198303601 - 2⁵ = 198303569 is a prime.

It is a Chen prime.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99151800 + 99151801.

It is an arithmetic number, because the mean of its divisors is an integer number (99151801).

Almost surely, 2^198303601 is an apocalyptic number.

It is an amenable number.

198303601 is a deficient number, since it is larger than the sum of its proper divisors (1).

198303601 is an equidigital number, since it uses as much as digits as its factorization.

198303601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 198303601 is about 14082.0311390083. The cubic root of 198303601 is about 583.1454170943.

The spelling of 198303601 in words is "one hundred ninety-eight million, three hundred three thousand, six hundred one".