13205 is nontrivially palindromic in base 3 and base 9.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a nialpdrome in base 7.
It is a congruent number.
It is an unprimeable number.
213205 is an apocalyptic number.
It is an amenable number.
13205 is a wasteful number, since it uses less digits than its factorization.
13205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 163.
The square root of 13205 is about 114.9130105776. The cubic root of 13205 is about 23.6362986371.
Adding to 13205 its reverse (50231), we get a palindrome (63436).
The spelling of 13205 in words is "thirteen thousand, two hundred five".