14391321 has 8 divisors (see below), whose sum is σ = 21929664. Its totient is φ = 8223600.

The previous prime is 14391319. The next prime is 14391323. The reversal of 14391321 is 12319341.

14391321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (14391319) and next prime (14391323).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14391321 - 2¹ = 14391319 is a prime.

It is a super-2 number, since 2×14391321² = 414220240250082, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14391291 and 14391300.

It is not an unprimeable number, because it can be changed into a prime (14391323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342630 + ... + 342671.

It is an arithmetic number, because the mean of its divisors is an integer number (2741208).

Almost surely, 2^14391321 is an apocalyptic number.

It is an amenable number.

14391321 is a deficient number, since it is larger than the sum of its proper divisors (7538343).

14391321 is an equidigital number, since it uses as much as digits as its factorization.

14391321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685311.

The product of its digits is 648, while the sum is 24.

The square root of 14391321 is about 3793.5894611832. The cubic root of 14391321 is about 243.2391927490.

The spelling of 14391321 in words is "fourteen million, three hundred ninety-one thousand, three hundred twenty-one".