520230143 has 8 divisors (see below), whose sum is σ = 536654640. Its totient is φ = 504060480.

The previous prime is 520230103. The next prime is 520230167. The reversal of 520230143 is 341032025.

It is a happy number.

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-520230143 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 (520230103) 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, 59558 + ... + 67731.

It is an arithmetic number, because the mean of its divisors is an integer number (67081830).

Almost surely, 2^520230143 is an apocalyptic number.

520230143 is a deficient number, since it is larger than the sum of its proper divisors (16424497).

520230143 is a wasteful number, since it uses less digits than its factorization.

520230143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127417.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 520230143 is about 22808.5541628574. The cubic root of 520230143 is about 804.2637677958.

Adding to 520230143 its reverse (341032025), we get a palindrome (861262168).

The spelling of 520230143 in words is "five hundred twenty million, two hundred thirty thousand, one hundred forty-three".