1253 is nontrivially palindromic in base 6 and base 11.
1253 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.
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: 3521 = 7 ⋅503.
It is a cyclic number.
It is a Duffinian number.
1253 is an undulating number in base 11.
It is a plaindrome in base 8 and base 15.
It is a nialpdrome in base 12 and base 13.
It is a congruent number.
It is an amenable number.
1253 is an equidigital number, since it uses as much as digits as its factorization.
1253 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 186.
The square root of 1253 is about 35.3977400409. The cubic root of 1253 is about 10.7807843039.
Adding to 1253 its reverse (3521), we get a palindrome (4774).
The spelling of 1253 in words is "one thousand, two hundred fifty-three".