13256 has 8 divisors (see below), whose sum is σ = 24870. Its totient is φ = 6624.

The previous prime is 13249. The next prime is 13259. The reversal of 13256 is 65231.

13256 is nontrivially palindromic in base 7.

13256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12100 + 1156 = 110^2 + 34^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13259) by changing a digit.

13256 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821 + ... + 836.

2¹³²⁵⁶ is an apocalyptic number.

It is an amenable number.

13256 is a deficient number, since it is larger than the sum of its proper divisors (11614).

13256 is a wasteful number, since it uses less digits than its factorization.

13256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663 (or 1659 counting only the distinct ones).

The product of its digits is 180, while the sum is 17.

The square root of 13256 is about 115.1347037170. The cubic root of 13256 is about 23.6666887081. Note that the first 4 decimals are identical.

Adding to 13256 its reverse (65231), we get a palindrome (78487).

It can be divided in two parts, 1325 and 6, that added together give a palindrome (1331).

The spelling of 13256 in words is "thirteen thousand, two hundred fifty-six".