1236 is nontrivially palindromic in base 16.
It is a tau number, because it is divible by the number of its divisors (12).
It is a nude number because it is divisible by every one of its digits.
It is an alternating number because its digits alternate between odd and even.
1236 is an undulating number in base 16.
It is a plaindrome in base 10.
It is a nialpdrome in base 6, base 12, base 13 and base 14.
It is a congruent number.
1236 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1236 is a wasteful number, since it uses less digits than its factorization.
It is an anagram of its base 9 representation: 1236 = (1623)9.
1236 is an odious number, because the sum of its binary digits is odd.
The square root of 1236 is about 35.1567916625. The cubic root of 1236 is about 10.7318062545.
Adding to 1236 its reverse (6321), we get a palindrome (7557).
The spelling of 1236 in words is "one thousand, two hundred thirty-six".