11456 has 14 divisors (see below), whose sum is σ = 22860. Its totient is φ = 5696.

The previous prime is 11447. The next prime is 11467. The reversal of 11456 is 65411.

It is a happy number.

11456 is nontrivially palindromic in base 7.

It is an Ulam number.

It is a plaindrome in base 10.

It is an unprimeable number.

11456 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 (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26 + ... + 153.

2¹¹⁴⁵⁶ is an apocalyptic number.

11456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11456 is a deficient number, since it is larger than the sum of its proper divisors (11404).

11456 is an equidigital number, since it uses as much as digits as its factorization.

11456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 181 counting only the distinct ones).

The product of its digits is 120, while the sum is 17.

The square root of 11456 is about 107.0327052821. The cubic root of 11456 is about 22.5429631782.

Adding to 11456 its reverse (65411), we get a palindrome (76867).

The spelling of 11456 in words is "eleven thousand, four hundred fifty-six".