14143447 has 4 divisors (see below), whose sum is σ = 14152216. Its totient is φ = 14134680.

The previous prime is 14143427. The next prime is 14143453. The reversal of 14143447 is 74434141.

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, and also an emirpimes, since its reverse is a distinct semiprime: 74434141 = 23 ⋅3236267.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14143447 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 (14143427) 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, 1188 + ... + 5449.

It is an arithmetic number, because the mean of its divisors is an integer number (3538054).

Almost surely, 2^14143447 is an apocalyptic number.

14143447 is a deficient number, since it is larger than the sum of its proper divisors (8769).

14143447 is an equidigital number, since it uses as much as digits as its factorization.

14143447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8768.

The product of its digits is 5376, while the sum is 28.

The square root of 14143447 is about 3760.7774462204. Note that the first 3 decimals coincide. The cubic root of 14143447 is about 241.8345920208.

Adding to 14143447 its reverse (74434141), we get a palindrome (88577588).

The spelling of 14143447 in words is "fourteen million, one hundred forty-three thousand, four hundred forty-seven".