Adding to 18207 its sum of digits (18), we get a square (18225 = 1352).
Multipling 18207 by its product of nonzero digits (112), we get a square (2039184 = 14282).
Adding to 18207 its reverse (70281), we get a palindrome (88488).
It is an Ulam number.
It is a Duffinian number.
18207 is a lucky number.
It is a nialpdrome in base 12.
It is a self number, because there is not a number n which added to its sum of digits gives 18207.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 18207.
218207 is an apocalyptic number.
18207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.
18207 is a wasteful number, since it uses less digits than its factorization.
18207 is an odious number, because the sum of its binary digits is odd.
The square root of 18207 is about 134.9333168643. The cubic root of 18207 is about 26.3074930338.
The spelling of 18207 in words is "eighteen thousand, two hundred seven".