Subtracting from 1144 its product of digits (16), we obtain a triangular number (1128 = T47).
Adding to 1144 its reverse (4411), we get a palindrome (5555).
1144 is nontrivially palindromic in base 7.
It is a nude number because it is divisible by every one of its digits.
It is a plaindrome in base 10 and base 16.
It is a nialpdrome in base 11.
It is a zygodrome in base 10.
It is a self number, because there is not a number n which added to its sum of digits gives 1144.
It is a congruent number.
It is an unprimeable number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1144 is a wasteful number, since it uses less digits than its factorization.
1144 is an odious number, because the sum of its binary digits is odd.
The square root of 1144 is about 33.8230690506. The cubic root of 1144 is about 10.4586430635.
The spelling of 1144 in words is "one thousand, one hundred forty-four", and thus it is an iban number.