520128041 has 2 divisors, whose sum is σ = 520128042. Its totient is φ = 520128040.

The previous prime is 520128031. The next prime is 520128047. The reversal of 520128041 is 140821025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 520022416 + 105625 = 22804^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 520128041 - 2⁶ = 520127977 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 520127998 and 520128016.

It is not a weakly prime, because it can be changed into another prime (520128047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260064020 + 260064021.

It is an arithmetic number, because the mean of its divisors is an integer number (260064021).

Almost surely, 2^520128041 is an apocalyptic number.

It is an amenable number.

520128041 is a deficient number, since it is larger than the sum of its proper divisors (1).

520128041 is an equidigital number, since it uses as much as digits as its factorization.

520128041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 520128041 is about 22806.3158138267. The cubic root of 520128041 is about 804.2111485765.

Adding to 520128041 its reverse (140821025), we get a palindrome (660949066).

The spelling of 520128041 in words is "five hundred twenty million, one hundred twenty-eight thousand, forty-one".