520294143 has 8 divisors (see below), whose sum is σ = 698382000. Its totient is φ = 344534528.

The previous prime is 520294121. The next prime is 520294147. The reversal of 520294143 is 341492025.

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 520294143 - 2⁸ = 520293887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520294143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520294147) 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, 581538 + ... + 582431.

It is an arithmetic number, because the mean of its divisors is an integer number (87297750).

Almost surely, 2^520294143 is an apocalyptic number.

520294143 is a deficient number, since it is larger than the sum of its proper divisors (178087857).

520294143 is a wasteful number, since it uses less digits than its factorization.

520294143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164121.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 520294143 is about 22809.9571021078. The cubic root of 520294143 is about 804.2967472833.

The spelling of 520294143 in words is "five hundred twenty million, two hundred ninety-four thousand, one hundred forty-three".