503113 has 8 divisors (see below), whose sum is σ = 547400. Its totient is φ = 462384.

The previous prime is 503077. The next prime is 503123. The reversal of 503113 is 311305.

It can be written as a sum of positive squares in 4 ways, for example, as 51529 + 451584 = 227^2 + 672^2 .

It is a de Polignac number, because none of the positive numbers 2^k-503113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 503093 and 503102.

It is not an unprimeable number, because it can be changed into a prime (503123) 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 in 7 ways as a sum of consecutive naturals, for example, 2083 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (68425).

2⁵⁰³¹¹³ is an apocalyptic number.

It is an amenable number.

503113 is a deficient number, since it is larger than the sum of its proper divisors (44287).

503113 is an equidigital number, since it uses as much as digits as its factorization.

503113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 503113 is about 709.3045890166. The cubic root of 503113 is about 79.5344312443.

Adding to 503113 its reverse (311305), we get a palindrome (814418).

It can be divided in two parts, 503 and 113, that added together give a palindrome (616).

The spelling of 503113 in words is "five hundred three thousand, one hundred thirteen".