11465 has 4 divisors (see below), whose sum is σ = 13764. Its totient is φ = 9168.

The previous prime is 11447. The next prime is 11467. The reversal of 11465 is 56411.

It is a happy number.

11465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56411 = 19 ⋅2969.

It can be written as a sum of positive squares in 2 ways, for example, as 3721 + 7744 = 61^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 11465 - 2¹² = 7369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11467) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1142 + ... + 1151.

It is an arithmetic number, because the mean of its divisors is an integer number (3441).

2¹¹⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

11465 is a deficient number, since it is larger than the sum of its proper divisors (2299).

11465 is an equidigital number, since it uses as much as digits as its factorization.

11465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298.

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

The square root of 11465 is about 107.0747402518. The cubic root of 11465 is about 22.5488649927.

Adding to 11465 its reverse (56411), we get a palindrome (67876).

It can be divided in two parts, 11 and 465, that multiplied together give a palindrome (5115).

The spelling of 11465 in words is "eleven thousand, four hundred sixty-five".