14491 has 4 divisors (see below), whose sum is σ = 14872. Its totient is φ = 14112.

The previous prime is 14489. The next prime is 14503. The reversal of 14491 is 19441.

It is a semiprime because it is the product of two primes.

It is a 5-Lehmer number, since φ(14491) divides (14491-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 14491 - 2¹ = 14489 is a prime.

It is an Ulam number.

It is a Duffinian number.

14491 is a lucky number.

It is a plaindrome in base 13 and base 16.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (14401) 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, 126 + ... + 211.

It is an arithmetic number, because the mean of its divisors is an integer number (3718).

It is a Poulet number, since it divides 2¹⁴⁴⁹⁰-1.

2¹⁴⁴⁹¹ is an apocalyptic number.

14491 is the 70-th hex number.

14491 is a deficient number, since it is larger than the sum of its proper divisors (381).

14491 is an equidigital number, since it uses as much as digits as its factorization.

14491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380.

The product of its digits is 144, while the sum is 19.

The square root of 14491 is about 120.3785695213. The cubic root of 14491 is about 24.3799485898.

Subtracting 14491 from its reverse (19441), we obtain a triangular number (4950 = T₉₉).

It can be divided in two parts, 14 and 491, that added together give a palindrome (505).

The spelling of 14491 in words is "fourteen thousand, four hundred ninety-one".