509164027 has 2 divisors, whose sum is σ = 509164028. Its totient is φ = 509164026.

The previous prime is 509164003. The next prime is 509164037. The reversal of 509164027 is 720461905.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 509164027 - 2⁷ = 509163899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 509163983 and 509164001.

It is not a weakly prime, because it can be changed into another prime (509164037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254582013 + 254582014.

It is an arithmetic number, because the mean of its divisors is an integer number (254582014).

Almost surely, 2^509164027 is an apocalyptic number.

509164027 is a deficient number, since it is larger than the sum of its proper divisors (1).

509164027 is an equidigital number, since it uses as much as digits as its factorization.

509164027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 509164027 is about 22564.6632370173. The cubic root of 509164027 is about 798.5201951389.

The spelling of 509164027 in words is "five hundred nine million, one hundred sixty-four thousand, twenty-seven".