505135069 has 2 divisors, whose sum is σ = 505135070. Its totient is φ = 505135068.

The previous prime is 505135067. The next prime is 505135133. The reversal of 505135069 is 960531505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503418969 + 1716100 = 22437^2 + 1310^2 .

It is a cyclic number.

It is not a de Polignac number, because 505135069 - 2¹ = 505135067 is a prime.

It is a super-2 number, since 2×505135069² = 510322875867269522, which contains 22 as substring.

Together with 505135067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505135067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252567534 + 252567535.

It is an arithmetic number, because the mean of its divisors is an integer number (252567535).

Almost surely, 2^505135069 is an apocalyptic number.

It is an amenable number.

505135069 is a deficient number, since it is larger than the sum of its proper divisors (1).

505135069 is an equidigital number, since it uses as much as digits as its factorization.

505135069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 505135069 is about 22475.2100991292. The cubic root of 505135069 is about 796.4084148796.

The spelling of 505135069 in words is "five hundred five million, one hundred thirty-five thousand, sixty-nine".