320144143 has 8 divisors (see below), whose sum is σ = 350494416. Its totient is φ = 290001600.

The previous prime is 320144101. The next prime is 320144147. The reversal of 320144143 is 341441023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320144143 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 (320144147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48696 + ... + 54877.

It is an arithmetic number, because the mean of its divisors is an integer number (43811802).

Almost surely, 2^320144143 is an apocalyptic number.

320144143 is a deficient number, since it is larger than the sum of its proper divisors (30350273).

320144143 is a wasteful number, since it uses less digits than its factorization.

320144143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103865.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 320144143 is about 17892.5722857280. The cubic root of 320144143 is about 684.0930636970.

Adding to 320144143 its reverse (341441023), we get a palindrome (661585166).

The spelling of 320144143 in words is "three hundred twenty million, one hundred forty-four thousand, one hundred forty-three".