14214821 has 4 divisors (see below), whose sum is σ = 14517312. Its totient is φ = 13912332.

The previous prime is 14214817. The next prime is 14214847. The reversal of 14214821 is 12841241.

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 14214821 - 2² = 14214817 is a prime.

It is a super-2 number, since 2×14214821² = 404122272124082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14214881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151175 + ... + 151268.

It is an arithmetic number, because the mean of its divisors is an integer number (3629328).

Almost surely, 2^14214821 is an apocalyptic number.

It is an amenable number.

14214821 is a deficient number, since it is larger than the sum of its proper divisors (302491).

14214821 is an equidigital number, since it uses as much as digits as its factorization.

14214821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302490.

The product of its digits is 512, while the sum is 23.

The square root of 14214821 is about 3770.2547659276. The cubic root of 14214821 is about 242.2407105643.

The spelling of 14214821 in words is "fourteen million, two hundred fourteen thousand, eight hundred twenty-one".