14321521 has 2 divisors, whose sum is σ = 14321522. Its totient is φ = 14321520.

The previous prime is 14321509. The next prime is 14321533. The reversal of 14321521 is 12512341.

It is a balanced prime because it is at equal distance from previous prime (14321509) and next prime (14321533).

It can be written as a sum of positive squares in only one way, i.e., 14145121 + 176400 = 3761^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 14321521 - 2¹⁵ = 14288753 is a prime.

It is a Chen prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (14321551) 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 as a sum of consecutive naturals, namely, 7160760 + 7160761.

It is an arithmetic number, because the mean of its divisors is an integer number (7160761).

Almost surely, 2^14321521 is an apocalyptic number.

It is an amenable number.

14321521 is a deficient number, since it is larger than the sum of its proper divisors (1).

14321521 is an equidigital number, since it uses as much as digits as its factorization.

14321521 is an odious number, because the sum of its binary digits is odd.

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

The square root of 14321521 is about 3784.3785487184. The cubic root of 14321521 is about 242.8453067720.

Adding to 14321521 its reverse (12512341), we get a palindrome (26833862).

The spelling of 14321521 in words is "fourteen million, three hundred twenty-one thousand, five hundred twenty-one".