198435043 has 2 divisors, whose sum is σ = 198435044. Its totient is φ = 198435042.

The previous prime is 198435037. The next prime is 198435077. The reversal of 198435043 is 340534891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198435043 - 2¹⁷ = 198303971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198434993 and 198435011.

It is not a weakly prime, because it can be changed into another prime (198435443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99217521 + 99217522.

It is an arithmetic number, because the mean of its divisors is an integer number (99217522).

Almost surely, 2^198435043 is an apocalyptic number.

198435043 is a deficient number, since it is larger than the sum of its proper divisors (1).

198435043 is an equidigital number, since it uses as much as digits as its factorization.

198435043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 198435043 is about 14086.6973773131. The cubic root of 198435043 is about 583.2742311459.

The spelling of 198435043 in words is "one hundred ninety-eight million, four hundred thirty-five thousand, forty-three".