198513443 has 2 divisors, whose sum is σ = 198513444. Its totient is φ = 198513442.

The previous prime is 198513283. The next prime is 198513449. The reversal of 198513443 is 344315891.

198513443 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 is a cyclic number.

It is not a de Polignac number, because 198513443 - 2¹² = 198509347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198513397 and 198513406.

It is not a weakly prime, because it can be changed into another prime (198513449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99256721 + 99256722.

It is an arithmetic number, because the mean of its divisors is an integer number (99256722).

Almost surely, 2^198513443 is an apocalyptic number.

198513443 is a deficient number, since it is larger than the sum of its proper divisors (1).

198513443 is an equidigital number, since it uses as much as digits as its factorization.

198513443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 198513443 is about 14089.4798697468. The cubic root of 198513443 is about 583.3510365965.

The spelling of 198513443 in words is "one hundred ninety-eight million, five hundred thirteen thousand, four hundred forty-three".