4100 is nontrivially palindromic in base 9.
4100 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
4100 is an undulating number in base 3.
4100 is a nontrivial repdigit in base 9.
It is a plaindrome in base 9, base 12, base 14 and base 15.
It is a nialpdrome in base 9 and base 10.
It is a zygodrome in base 9.
It is a congruent number.
It is an unprimeable number.
24100 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 4100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4557).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4100 is a wasteful number, since it uses less digits than its factorization.
It is an anagram of its base 16 representation: 4100 = (1004)16.
4100 is an evil number, because the sum of its binary digits is even.
The square root of 4100 is about 64.0312423743. The cubic root of 4100 is about 16.0052066388.
Adding to 4100 its reverse (14), we get a palindrome (4114).
The spelling of 4100 in words is "four thousand, one hundred", and thus it is an iban number.