14581 has 4 divisors (see below), whose sum is σ = 16672. Its totient is φ = 12492.

The previous prime is 14563. The next prime is 14591. The reversal of 14581 is 18541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14581 - 2⁵ = 14549 is a prime.

It is a super-2 number, since 2×14581² = 425211122, which contains 22 as substring.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035 + ... + 1048.

It is an arithmetic number, because the mean of its divisors is an integer number (4168).

2¹⁴⁵⁸¹ is an apocalyptic number.

It is an amenable number.

14581 is a deficient number, since it is larger than the sum of its proper divisors (2091).

14581 is an equidigital number, since it uses as much as digits as its factorization.

14581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090.

The product of its digits is 160, while the sum is 19.

The square root of 14581 is about 120.7518115806. The cubic root of 14581 is about 24.4303170587.

Adding to 14581 its product of digits (160), we get a palindrome (14741).

It can be divided in two parts, 14 and 581, that added together give a palindrome (595).

The spelling of 14581 in words is "fourteen thousand, five hundred eighty-one".