• 2352 = 55225 is the smallest square that contains exactly three digits '5'.
• 235 can be written using four 4's:
235 is nontrivially palindromic in base 4, base 7, base 8 and base 13.
235 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a Duffinian number.
235 is an undulating number in base 7, base 8 and base 13.
235 is a lucky number.
It is a plaindrome in base 10, base 12 and base 14.
It is a nialpdrome in base 16.
235 is the 10-th heptagonal number.
235 is the 13-th centered triangular number.
235 is an equidigital number, since it uses as much as digits as its factorization.
235 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52.
The square root of 235 is about 15.3297097168. The cubic root of 235 is about 6.1710057928.
Subtracting from 235 its sum of digits (10), we obtain a square (225 = 152).
Adding to 235 its reverse (532), we get a palindrome (767).
The spelling of 235 in words is "two hundred thirty-five", and thus it is an aban number.