14203921 has 4 divisors (see below), whose sum is σ = 14662144. Its totient is φ = 13745700.

The previous prime is 14203907. The next prime is 14203961. The reversal of 14203921 is 12930241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12930241 = 19 ⋅680539.

It is a cyclic number.

It is not a de Polignac number, because 14203921 - 2⁷ = 14203793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14203892 and 14203901.

It is not an unprimeable number, because it can be changed into a prime (14203901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229065 + ... + 229126.

It is an arithmetic number, because the mean of its divisors is an integer number (3665536).

Almost surely, 2^14203921 is an apocalyptic number.

It is an amenable number.

14203921 is a deficient number, since it is larger than the sum of its proper divisors (458223).

14203921 is an equidigital number, since it uses as much as digits as its factorization.

14203921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458222.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 14203921 is about 3768.8089630545. The cubic root of 14203921 is about 242.1787775783.

The spelling of 14203921 in words is "fourteen million, two hundred three thousand, nine hundred twenty-one".