520746141 has 4 divisors (see below), whose sum is σ = 694328192. Its totient is φ = 347164092.

The previous prime is 520746139. The next prime is 520746143. The reversal of 520746141 is 141647025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (520746139) and next prime (520746143).

It is not a de Polignac number, because 520746141 - 2¹ = 520746139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520746099 and 520746108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520746143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86791021 + ... + 86791026.

It is an arithmetic number, because the mean of its divisors is an integer number (173582048).

Almost surely, 2^520746141 is an apocalyptic number.

It is an amenable number.

520746141 is a deficient number, since it is larger than the sum of its proper divisors (173582051).

520746141 is a wasteful number, since it uses less digits than its factorization.

520746141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173582050.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 520746141 is about 22819.8628611129. The cubic root of 520746141 is about 804.5295869205.

The spelling of 520746141 in words is "five hundred twenty million, seven hundred forty-six thousand, one hundred forty-one".