14211521 has 2 divisors, whose sum is σ = 14211522. Its totient is φ = 14211520.

The previous prime is 14211517. The next prime is 14211551. The reversal of 14211521 is 12511241.

14211521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7263025 + 6948496 = 2695^2 + 2636^2 .

It is a cyclic number.

It is not a de Polignac number, because 14211521 - 2² = 14211517 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14211521.

It is not a weakly prime, because it can be changed into another prime (14211551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7105760 + 7105761.

It is an arithmetic number, because the mean of its divisors is an integer number (7105761).

Almost surely, 2^14211521 is an apocalyptic number.

It is an amenable number.

14211521 is a deficient number, since it is larger than the sum of its proper divisors (1).

14211521 is an equidigital number, since it uses as much as digits as its factorization.

14211521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80, while the sum is 17.

The square root of 14211521 is about 3769.8171043169. The cubic root of 14211521 is about 242.2219635534.

Adding to 14211521 its reverse (12511241), we get a palindrome (26722762).

The spelling of 14211521 in words is "fourteen million, two hundred eleven thousand, five hundred twenty-one".