198000619 has 2 divisors, whose sum is σ = 198000620. Its totient is φ = 198000618.

The previous prime is 198000617. The next prime is 198000697. The reversal of 198000619 is 916000891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198000619 - 2¹ = 198000617 is a prime.

It is a super-2 number, since 2×198000619² = 78408490248766322, which contains 22 as substring.

Together with 198000617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (198000617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99000309 + 99000310.

It is an arithmetic number, because the mean of its divisors is an integer number (99000310).

Almost surely, 2^198000619 is an apocalyptic number.

198000619 is a deficient number, since it is larger than the sum of its proper divisors (1).

198000619 is an equidigital number, since it uses as much as digits as its factorization.

198000619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 198000619 is about 14071.2692746603. The cubic root of 198000619 is about 582.8482757028.

The spelling of 198000619 in words is "one hundred ninety-eight million, six hundred nineteen", and thus it is an aban number.