198560543 has 2 divisors, whose sum is σ = 198560544. Its totient is φ = 198560542.

The previous prime is 198560521. The next prime is 198560591. The reversal of 198560543 is 345065891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198560543 - 2⁸ = 198560287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198560543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198560743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99280271 + 99280272.

It is an arithmetic number, because the mean of its divisors is an integer number (99280272).

Almost surely, 2^198560543 is an apocalyptic number.

198560543 is a deficient number, since it is larger than the sum of its proper divisors (1).

198560543 is an equidigital number, since it uses as much as digits as its factorization.

198560543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 198560543 is about 14091.1512304708. The cubic root of 198560543 is about 583.3971689234.

The spelling of 198560543 in words is "one hundred ninety-eight million, five hundred sixty thousand, five hundred forty-three".