Adding to 15217 its reverse (71251), we get a palindrome (86468).
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-15217 is a prime.
15217 is a lucky number.
It is a plaindrome in base 9 and base 14.
It is a zygodrome in base 9.
It is a self number, because there is not a number n which added to its sum of digits gives 15217.
It is a good prime.
215217 is an apocalyptic number.
It is an amenable number.
15217 is an equidigital number, since it uses as much as digits as its factorization.
15217 is an odious number, because the sum of its binary digits is odd.
The square root of 15217 is about 123.3572048970. The cubic root of 15217 is about 24.7804780465.
The spelling of 15217 in words is "fifteen thousand, two hundred seventeen".