520044143 has 8 divisors (see below), whose sum is σ = 531437760. Its totient is φ = 508664320.

The previous prime is 520044089. The next prime is 520044157. The reversal of 520044143 is 341440025.

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

It is a cyclic number.

It is not a de Polignac number, because 520044143 - 2¹⁰ = 520043119 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 (520044643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120503 + ... + 124743.

It is an arithmetic number, because the mean of its divisors is an integer number (66429720).

Almost surely, 2^520044143 is an apocalyptic number.

520044143 is a deficient number, since it is larger than the sum of its proper divisors (11393617).

520044143 is a wasteful number, since it uses less digits than its factorization.

520044143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6897.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 520044143 is about 22804.4763807460. The cubic root of 520044143 is about 804.1679058044.

Adding to 520044143 its reverse (341440025), we get a palindrome (861484168).

The spelling of 520044143 in words is "five hundred twenty million, forty-four thousand, one hundred forty-three".