198069253 has 2 divisors, whose sum is σ = 198069254. Its totient is φ = 198069252.

The previous prime is 198069239. The next prime is 198069259. The reversal of 198069253 is 352960891.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185558884 + 12510369 = 13622^2 + 3537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198069253 is a prime.

It is equal to p_10977874 and since 198069253 and 10977874 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198069259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99034626 + 99034627.

It is an arithmetic number, because the mean of its divisors is an integer number (99034627).

Almost surely, 2^198069253 is an apocalyptic number.

It is an amenable number.

198069253 is a deficient number, since it is larger than the sum of its proper divisors (1).

198069253 is an equidigital number, since it uses as much as digits as its factorization.

198069253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 198069253 is about 14073.7078625357. The cubic root of 198069253 is about 582.9156131813.

The spelling of 198069253 in words is "one hundred ninety-eight million, sixty-nine thousand, two hundred fifty-three".