505135 has 4 divisors (see below), whose sum is σ = 606168. Its totient is φ = 404104.

The previous prime is 505129. The next prime is 505139. The reversal of 505135 is 531505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505135 - 2¹⁷ = 374063 is a prime.

It is a super-2 number, since 2×505135² = 510322736450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505139) 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 in 3 ways as a sum of consecutive naturals, for example, 50509 + ... + 50518.

It is an arithmetic number, because the mean of its divisors is an integer number (151542).

2⁵⁰⁵¹³⁵ is an apocalyptic number.

505135 is a deficient number, since it is larger than the sum of its proper divisors (101033).

505135 is a wasteful number, since it uses less digits than its factorization.

505135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101032.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 505135 is about 710.7284994989. The cubic root of 505135 is about 79.6408378617.

The spelling of 505135 in words is "five hundred five thousand, one hundred thirty-five".