505136303 has 8 divisors (see below), whose sum is σ = 586763040. Its totient is φ = 425875680.

The previous prime is 505136279. The next prime is 505136309. The reversal of 505136303 is 303631505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505136303 - 2¹² = 505132207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505136309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591068 + ... + 591921.

It is an arithmetic number, because the mean of its divisors is an integer number (73345380).

Almost surely, 2^505136303 is an apocalyptic number.

505136303 is a deficient number, since it is larger than the sum of its proper divisors (81626737).

505136303 is a wasteful number, since it uses less digits than its factorization.

505136303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183057.

The product of its (nonzero) digits is 4050, while the sum is 26.

The square root of 505136303 is about 22475.2375515811. The cubic root of 505136303 is about 796.4090633973.

Adding to 505136303 its reverse (303631505), we get a palindrome (808767808).

The spelling of 505136303 in words is "five hundred five million, one hundred thirty-six thousand, three hundred three".