14021 has 4 divisors (see below), whose sum is σ = 16032. Its totient is φ = 12012.

The previous prime is 14011. The next prime is 14029. The reversal of 14021 is 12041.

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 de Polignac number, because none of the positive numbers 2^k-14021 is a prime.

It is a Duffinian number.

14021 is a modest number, since divided by 21 gives 14 as remainder.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 14021.

It is not an unprimeable number, because it can be changed into a prime (14029) 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, 995 + ... + 1008.

It is an arithmetic number, because the mean of its divisors is an integer number (4008).

2¹⁴⁰²¹ is an apocalyptic number.

It is an amenable number.

14021 is a deficient number, since it is larger than the sum of its proper divisors (2011).

14021 is an equidigital number, since it uses as much as digits as its factorization.

14021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 14021 is about 118.4103036057. The cubic root of 14021 is about 24.1134673327.

Adding to 14021 its reverse (12041), we get a palindrome (26062).

It can be divided in two parts, 140 and 21, that added together give a palindrome (161).

The spelling of 14021 in words is "fourteen thousand, twenty-one", and thus it is an iban number.