205198 has 8 divisors (see below), whose sum is σ = 351792. Its totient is φ = 87936.

The previous prime is 205187. The next prime is 205201. The reversal of 205198 is 891502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

205198 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7315 + ... + 7342.

It is an arithmetic number, because the mean of its divisors is an integer number (43974).

2²⁰⁵¹⁹⁸ is an apocalyptic number.

205198 is a deficient number, since it is larger than the sum of its proper divisors (146594).

205198 is a wasteful number, since it uses less digits than its factorization.

205198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14666.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 205198 is about 452.9878585569. The cubic root of 205198 is about 58.9826627217.

The spelling of 205198 in words is "two hundred five thousand, one hundred ninety-eight".