198252437 has 2 divisors, whose sum is σ = 198252438. Its totient is φ = 198252436.

The previous prime is 198252427. The next prime is 198252491. The reversal of 198252437 is 734252891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103754596 + 94497841 = 10186^2 + 9721^2 .

It is a cyclic number.

It is not a de Polignac number, because 198252437 - 2⁴ = 198252421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198252394 and 198252403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198252407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99126218 + 99126219.

It is an arithmetic number, because the mean of its divisors is an integer number (99126219).

Almost surely, 2^198252437 is an apocalyptic number.

It is an amenable number.

198252437 is a deficient number, since it is larger than the sum of its proper divisors (1).

198252437 is an equidigital number, since it uses as much as digits as its factorization.

198252437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 198252437 is about 14080.2143804702. The cubic root of 198252437 is about 583.0952606367.

The spelling of 198252437 in words is "one hundred ninety-eight million, two hundred fifty-two thousand, four hundred thirty-seven".