It is a happy number.
205045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is an Ulam number.
It is a Duffinian number.
It is a congruent number.
2205045 is an apocalyptic number.
It is an amenable number.
205045 is a wasteful number, since it uses less digits than its factorization.
205045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1811.
The square root of 205045 is about 452.8189483668. The cubic root of 205045 is about 58.9679995001.
Adding to 205045 its reverse (540502), we get a palindrome (745547).
The spelling of 205045 in words is "two hundred five thousand, forty-five".