198057253 has 2 divisors, whose sum is σ = 198057254. Its totient is φ = 198057252.

The previous prime is 198057241. The next prime is 198057257. The reversal of 198057253 is 352750891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114554209 + 83503044 = 10703^2 + 9138^2 .

It is a cyclic number.

It is not a de Polignac number, because 198057253 - 2⁵ = 198057221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198057257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99028626 + 99028627.

It is an arithmetic number, because the mean of its divisors is an integer number (99028627).

Almost surely, 2^198057253 is an apocalyptic number.

It is an amenable number.

198057253 is a deficient number, since it is larger than the sum of its proper divisors (1).

198057253 is an equidigital number, since it uses as much as digits as its factorization.

198057253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 198057253 is about 14073.2815291957. The cubic root of 198057253 is about 582.9038409880.

The spelling of 198057253 in words is "one hundred ninety-eight million, fifty-seven thousand, two hundred fifty-three".