198001343 has 2 divisors, whose sum is σ = 198001344. Its totient is φ = 198001342.

The previous prime is 198001333. The next prime is 198001373. The reversal of 198001343 is 343100891.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198001343 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198001313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99000671 + 99000672.

It is an arithmetic number, because the mean of its divisors is an integer number (99000672).

Almost surely, 2^198001343 is an apocalyptic number.

198001343 is a deficient number, since it is larger than the sum of its proper divisors (1).

198001343 is an equidigital number, since it uses as much as digits as its factorization.

198001343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 198001343 is about 14071.2950008164. The cubic root of 198001343 is about 582.8489861074.

The spelling of 198001343 in words is "one hundred ninety-eight million, one thousand, three hundred forty-three".