198277193 has 2 divisors, whose sum is σ = 198277194. Its totient is φ = 198277192.

The previous prime is 198277153. The next prime is 198277201. The reversal of 198277193 is 391772891.

198277193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137639824 + 60637369 = 11732^2 + 7787^2 .

It is an emirp because it is prime and its reverse (391772891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198277193 - 2⁶ = 198277129 is a prime.

It is not a weakly prime, because it can be changed into another prime (198277133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99138596 + 99138597.

It is an arithmetic number, because the mean of its divisors is an integer number (99138597).

Almost surely, 2^198277193 is an apocalyptic number.

It is an amenable number.

198277193 is a deficient number, since it is larger than the sum of its proper divisors (1).

198277193 is an equidigital number, since it uses as much as digits as its factorization.

198277193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 47.

The square root of 198277193 is about 14081.0934589612. The cubic root of 198277193 is about 583.1195302089.

The spelling of 198277193 in words is "one hundred ninety-eight million, two hundred seventy-seven thousand, one hundred ninety-three".