14145443391 has 4 divisors (see below), whose sum is σ = 18860591192. Its totient is φ = 9430295592.

The previous prime is 14145443341. The next prime is 14145443393. The reversal of 14145443391 is 19334454141.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 14145443391 - 2¹⁵ = 14145410623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14145443393) 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, 2357573896 + ... + 2357573901.

It is an arithmetic number, because the mean of its divisors is an integer number (4715147798).

Almost surely, 2^14145443391 is an apocalyptic number.

14145443391 is a deficient number, since it is larger than the sum of its proper divisors (4715147801).

14145443391 is an equidigital number, since it uses as much as digits as its factorization.

14145443391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4715147800.

The product of its digits is 103680, while the sum is 39.

The spelling of 14145443391 in words is "fourteen billion, one hundred forty-five million, four hundred forty-three thousand, three hundred ninety-one".