Adding to 140140 its reverse (41041), we get a palindrome (181181).
Subtracting from 140140 its reverse (41041), we obtain a palindrome (99099).
It is a plaindrome in base 16.
It is a nialpdrome in base 11.
2140140 is an apocalyptic number.
140140 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 140140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201096).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
140140 is a wasteful number, since it uses less digits than its factorization.
140140 is an evil number, because the sum of its binary digits is even.
The square root of 140140 is about 374.3527747994. The cubic root of 140140 is about 51.9422435659.
The spelling of 140140 in words is "one hundred forty thousand, one hundred forty", and thus it is an iban number.