Adding to 16213 its reverse (31261), we get a palindrome (47474).
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31261 = 43 ⋅727.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-16213 is a prime.
It is a d-powerful number, because it can be written as 1 + 65 + 213 + 1 + 35 .
It is a Duffinian number.
16213 is a lucky number.
It is a plaindrome in base 11.
It is a nialpdrome in base 4.
It is a zygodrome in base 4 and base 11.
It is a congruent number.
216213 is an apocalyptic number.
It is an amenable number.
16213 is an equidigital number, since it uses as much as digits as its factorization.
16213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 554.
The square root of 16213 is about 127.3302791955. The cubic root of 16213 is about 25.3097464362.
The spelling of 16213 in words is "sixteen thousand, two hundred thirteen".