198301801 has 2 divisors, whose sum is σ = 198301802. Its totient is φ = 198301800.

The previous prime is 198301781. The next prime is 198301813. The reversal of 198301801 is 108103891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191850201 + 6451600 = 13851^2 + 2540^2 .

It is a cyclic number.

It is not a de Polignac number, because 198301801 - 2⁹ = 198301289 is a prime.

It is not a weakly prime, because it can be changed into another prime (198301861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99150900 + 99150901.

It is an arithmetic number, because the mean of its divisors is an integer number (99150901).

Almost surely, 2^198301801 is an apocalyptic number.

It is an amenable number.

198301801 is a deficient number, since it is larger than the sum of its proper divisors (1).

198301801 is an equidigital number, since it uses as much as digits as its factorization.

198301801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 198301801 is about 14081.9672276284. The cubic root of 198301801 is about 583.1436526871.

The spelling of 198301801 in words is "one hundred ninety-eight million, three hundred one thousand, eight hundred one".