520128047 has 2 divisors, whose sum is σ = 520128048. Its totient is φ = 520128046.

The previous prime is 520128041. The next prime is 520128067. The reversal of 520128047 is 740821025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520128047 - 2⁴ = 520128031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520128041) 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 as a sum of consecutive naturals, namely, 260064023 + 260064024.

It is an arithmetic number, because the mean of its divisors is an integer number (260064024).

Almost surely, 2^520128047 is an apocalyptic number.

520128047 is a deficient number, since it is larger than the sum of its proper divisors (1).

520128047 is an equidigital number, since it uses as much as digits as its factorization.

520128047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 520128047 is about 22806.3159453692. The cubic root of 520128047 is about 804.2111516688.

The spelling of 520128047 in words is "five hundred twenty million, one hundred twenty-eight thousand, forty-seven".