198244037 has 2 divisors, whose sum is σ = 198244038. Its totient is φ = 198244036.

The previous prime is 198244027. The next prime is 198244091. The reversal of 198244037 is 730442891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196728676 + 1515361 = 14026^2 + 1231^2 .

It is a cyclic number.

It is not a de Polignac number, because 198244037 - 2⁸ = 198243781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198244027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99122018 + 99122019.

It is an arithmetic number, because the mean of its divisors is an integer number (99122019).

Almost surely, 2^198244037 is an apocalyptic number.

It is an amenable number.

198244037 is a deficient number, since it is larger than the sum of its proper divisors (1).

198244037 is an equidigital number, since it uses as much as digits as its factorization.

198244037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 198244037 is about 14079.9160863977. The cubic root of 198244037 is about 583.0870252283.

The spelling of 198244037 in words is "one hundred ninety-eight million, two hundred forty-four thousand, thirty-seven".