14111521 has 4 divisors (see below), whose sum is σ = 14119812. Its totient is φ = 14103232.

The previous prime is 14111507. The next prime is 14111549. The reversal of 14111521 is 12511141.

14111521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6051600 + 8059921 = 2460^2 + 2839^2 .

It is a cyclic number.

It is not a de Polignac number, because 14111521 - 2²¹ = 12014369 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 14111495 and 14111504.

It is not an unprimeable number, because it can be changed into a prime (14111551) 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, 556 + ... + 5341.

It is an arithmetic number, because the mean of its divisors is an integer number (3529953).

Almost surely, 2^14111521 is an apocalyptic number.

It is an amenable number.

14111521 is a deficient number, since it is larger than the sum of its proper divisors (8291).

14111521 is an equidigital number, since it uses as much as digits as its factorization.

14111521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8290.

The product of its digits is 40, while the sum is 16.

The square root of 14111521 is about 3756.5304471014. The cubic root of 14111521 is about 241.6524905412.

Adding to 14111521 its reverse (12511141), we get a palindrome (26622662).

The spelling of 14111521 in words is "fourteen million, one hundred eleven thousand, five hundred twenty-one".