It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1411 = 17 ⋅83.
It is a 5-Lehmer number, since φ(1141) divides (1141-1)5.
It is a cyclic number.
It is a Duffinian number.
It is a plaindrome in base 13.
It is a nialpdrome in base 7 and base 15.
It is a congruent number.
21141 is an apocalyptic number.
1141 is the 20-th hex number.
It is an amenable number.
1141 is an equidigital number, since it uses as much as digits as its factorization.
1141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 170.
The square root of 1141 is about 33.7786915081. The cubic root of 1141 is about 10.4494928899.
Adding to 1141 its reverse (1411), we get a palindrome (2552).
The spelling of 1141 in words is "one thousand, one hundred forty-one", and thus it is an iban number.