205098 has 8 divisors (see below), whose sum is σ = 410208. Its totient is φ = 68364.

The previous prime is 205097. The next prime is 205103. The reversal of 205098 is 890502.

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

205098 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (205097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17086 + ... + 17097.

It is an arithmetic number, because the mean of its divisors is an integer number (51276).

2²⁰⁵⁰⁹⁸ is an apocalyptic number.

205098 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205098 is a wasteful number, since it uses less digits than its factorization.

205098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34188.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 205098 is about 452.8774668716. The cubic root of 205098 is about 58.9730797422.

The spelling of 205098 in words is "two hundred five thousand, ninety-eight".