14240143 has 4 divisors (see below), whose sum is σ = 14251968. Its totient is φ = 14228320.

The previous prime is 14240137. The next prime is 14240159. The reversal of 14240143 is 34104241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14240143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14240143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14240173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3871 + ... + 6592.

It is an arithmetic number, because the mean of its divisors is an integer number (3562992).

Almost surely, 2^14240143 is an apocalyptic number.

14240143 is a deficient number, since it is larger than the sum of its proper divisors (11825).

14240143 is a wasteful number, since it uses less digits than its factorization.

14240143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11824.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 14240143 is about 3773.6114002372. The cubic root of 14240143 is about 242.3844661683.

Adding to 14240143 its reverse (34104241), we get a palindrome (48344384).

The spelling of 14240143 in words is "fourteen million, two hundred forty thousand, one hundred forty-three".