14515421443 has 4 divisors (see below), whose sum is σ = 14539654800. Its totient is φ = 14491188088.

The previous prime is 14515421413. The next prime is 14515421471. The reversal of 14515421443 is 34412451541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34412451541 = 13 ⋅2647111657.

It is a cyclic number.

It is not a de Polignac number, because 14515421443 - 2⁵ = 14515421411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14515421399 and 14515421408.

It is not an unprimeable number, because it can be changed into a prime (14515421413) 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, 12115780 + ... + 12116977.

It is an arithmetic number, because the mean of its divisors is an integer number (3634913700).

Almost surely, 2^14515421443 is an apocalyptic number.

14515421443 is a deficient number, since it is larger than the sum of its proper divisors (24233357).

14515421443 is an equidigital number, since it uses as much as digits as its factorization.

14515421443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24233356.

The product of its digits is 38400, while the sum is 34.

Adding to 14515421443 its reverse (34412451541), we get a palindrome (48927872984).

The spelling of 14515421443 in words is "fourteen billion, five hundred fifteen million, four hundred twenty-one thousand, four hundred forty-three".