14331521 has 2 divisors, whose sum is σ = 14331522. Its totient is φ = 14331520.

The previous prime is 14331497. The next prime is 14331589. The reversal of 14331521 is 12513341.

14331521 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., 10857025 + 3474496 = 3295^2 + 1864^2 .

It is an emirp because it is prime and its reverse (12513341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14331521 - 2¹⁰ = 14330497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14331493 and 14331502.

It is not a weakly prime, because it can be changed into another prime (14331721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7165760 + 7165761.

It is an arithmetic number, because the mean of its divisors is an integer number (7165761).

Almost surely, 2^14331521 is an apocalyptic number.

It is an amenable number.

14331521 is a deficient number, since it is larger than the sum of its proper divisors (1).

14331521 is an equidigital number, since it uses as much as digits as its factorization.

14331521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 20.

The square root of 14331521 is about 3785.6995390548. The cubic root of 14331521 is about 242.9018158552.

Adding to 14331521 its reverse (12513341), we get a palindrome (26844862).

It can be divided in two parts, 143 and 31521, that multiplied together give a triangular number (4507503 = T₃₀₀₂).

The spelling of 14331521 in words is "fourteen million, three hundred thirty-one thousand, five hundred twenty-one".