509071 has 2 divisors, whose sum is σ = 509072. Its totient is φ = 509070.

The previous prime is 509063. The next prime is 509087. The reversal of 509071 is 170905.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 509071 - 2³ = 509063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506071) 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, 254535 + 254536.

It is an arithmetic number, because the mean of its divisors is an integer number (254536).

2⁵⁰⁹⁰⁷¹ is an apocalyptic number.

509071 is a deficient number, since it is larger than the sum of its proper divisors (1).

509071 is an equidigital number, since it uses as much as digits as its factorization.

509071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 509071 is about 713.4921162844. The cubic root of 509071 is about 79.8471560869.

Adding to 509071 its reverse (170905), we get a palindrome (679976).

The spelling of 509071 in words is "five hundred nine thousand, seventy-one".