14105444521 has 4 divisors (see below), whose sum is σ = 16120508032. Its totient is φ = 12090381012.

The previous prime is 14105444503. The next prime is 14105444609. The reversal of 14105444521 is 12544450141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14105444521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14105444321) 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, 1007531745 + ... + 1007531758.

It is an arithmetic number, because the mean of its divisors is an integer number (4030127008).

Almost surely, 2^14105444521 is an apocalyptic number.

It is an amenable number.

14105444521 is a deficient number, since it is larger than the sum of its proper divisors (2015063511).

14105444521 is an equidigital number, since it uses as much as digits as its factorization.

14105444521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015063510.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 14105444521 its reverse (12544450141), we get a palindrome (26649894662).

The spelling of 14105444521 in words is "fourteen billion, one hundred five million, four hundred forty-four thousand, five hundred twenty-one".