520112743 has 4 divisors (see below), whose sum is σ = 520706680. Its totient is φ = 519518808.

The previous prime is 520112741. The next prime is 520112753. The reversal of 520112743 is 347211025.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 520112743 - 2¹ = 520112741 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 (520112741) 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, 295653 + ... + 297406.

It is an arithmetic number, because the mean of its divisors is an integer number (130176670).

Almost surely, 2^520112743 is an apocalyptic number.

520112743 is a deficient number, since it is larger than the sum of its proper divisors (593937).

520112743 is an equidigital number, since it uses as much as digits as its factorization.

520112743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593936.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 520112743 is about 22805.9804218104. The cubic root of 520112743 is about 804.2032640161.

Adding to 520112743 its reverse (347211025), we get a palindrome (867323768).

The spelling of 520112743 in words is "five hundred twenty million, one hundred twelve thousand, seven hundred forty-three".