14893517521 has 3 divisors (see below), whose sum is σ = 14893639561. Its totient is φ = 14893395482.

The previous prime is 14893517503. The next prime is 14893517579. The reversal of 14893517521 is 12571539841.

The square root of 14893517521 is 122039.

It is a perfect power (a square), and thus also a powerful number.

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 is not a de Polignac number, because 14893517521 - 2⁵ = 14893517489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14893517621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 61020 + ... + 183058.

Almost surely, 2^14893517521 is an apocalyptic number.

14893517521 is the 122039-th square number.

14893517521 is the 61020-th centered octagonal number.

It is an amenable number.

14893517521 is a deficient number, since it is larger than the sum of its proper divisors (122040).

14893517521 is an frugal number, since it uses more digits than its factorization.

14893517521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244078 (or 122039 counting only the distinct ones).

The product of its digits is 302400, while the sum is 46.

The spelling of 14893517521 in words is "fourteen billion, eight hundred ninety-three million, five hundred seventeen thousand, five hundred twenty-one".