2124 is nontrivially palindromic in base 8, base 11, base 14 and base 15.
2124 is an esthetic number in base 14, because in such base its adjacent digits differ by 1.
It is a tau number, because it is divible by the number of its divisors (18).
It is a nude number because it is divisible by every one of its digits.
2124 is an undulating number in base 14 and base 15.
It is a nialpdrome in base 13.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2730).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2124 is a wasteful number, since it uses less digits than its factorization.
2124 is an evil number, because the sum of its binary digits is even.
The square root of 2124 is about 46.0868744872. The cubic root of 2124 is about 12.8543909454.
Adding to 2124 its reverse (4212), we get a palindrome (6336).
The spelling of 2124 in words is "two thousand, one hundred twenty-four", and thus it is an iban number.