198764053 has 2 divisors, whose sum is σ = 198764054. Its totient is φ = 198764052.

The previous prime is 198764021. The next prime is 198764089. The reversal of 198764053 is 350467891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191490244 + 7273809 = 13838^2 + 2697^2 .

It is an emirp because it is prime and its reverse (350467891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198764053 - 2⁵ = 198764021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198761053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99382026 + 99382027.

It is an arithmetic number, because the mean of its divisors is an integer number (99382027).

Almost surely, 2^198764053 is an apocalyptic number.

It is an amenable number.

198764053 is a deficient number, since it is larger than the sum of its proper divisors (1).

198764053 is an equidigital number, since it uses as much as digits as its factorization.

198764053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 198764053 is about 14098.3705796095. The cubic root of 198764053 is about 583.5964139780.

The spelling of 198764053 in words is "one hundred ninety-eight million, seven hundred sixty-four thousand, fifty-three".