14521321 has 4 divisors (see below), whose sum is σ = 14543572. Its totient is φ = 14499072.

The previous prime is 14521319. The next prime is 14521327. The reversal of 14521321 is 12312541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12312541 = 1489 ⋅8269.

It can be written as a sum of positive squares in 2 ways, for example, as 8785296 + 5736025 = 2964^2 + 2395^2 .

It is a cyclic number.

It is not a de Polignac number, because 14521321 - 2¹ = 14521319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14521327) 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, 10116 + ... + 11461.

It is an arithmetic number, because the mean of its divisors is an integer number (3635893).

Almost surely, 2^14521321 is an apocalyptic number.

It is an amenable number.

14521321 is a deficient number, since it is larger than the sum of its proper divisors (22251).

14521321 is an equidigital number, since it uses as much as digits as its factorization.

14521321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22250.

The product of its digits is 240, while the sum is 19.

The square root of 14521321 is about 3810.6851090060. The cubic root of 14521321 is about 243.9694096292.

Adding to 14521321 its reverse (12312541), we get a palindrome (26833862).

The spelling of 14521321 in words is "fourteen million, five hundred twenty-one thousand, three hundred twenty-one".