Adding to 100100 its reverse (1001), we get a palindrome (101101).
Subtracting from 100100 its reverse (1001), we obtain a palindrome (99099).
Multipling 100100 by its reverse (1001), we get a square (100200100 = 100102).
100100 divided by its reverse (1001) gives a square (100 = 102).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
2100100 is an apocalyptic number.
100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 100100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145824).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
100100 is a wasteful number, since it uses less digits than its factorization.
100100 is an evil number, because the sum of its binary digits is even.
The square root of 100100 is about 316.3858403911. The cubic root of 100100 is about 46.4313551444.
The spelling of 100100 in words is "one hundred thousand, one hundred", and thus it is an iban number.