503138 has 8 divisors (see below), whose sum is σ = 759132. Its totient is φ = 250096.

The previous prime is 503137. The next prime is 503147. The reversal of 503138 is 831305.

It can be written as a sum of positive squares in 2 ways, for example, as 426409 + 76729 = 653^2 + 277^2 .

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

It is not an unprimeable number, because it can be changed into a prime (503131) 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 3 ways as a sum of consecutive naturals, for example, 245 + ... + 1032.

2⁵⁰³¹³⁸ is an apocalyptic number.

503138 is a deficient number, since it is larger than the sum of its proper divisors (255994).

503138 is a wasteful number, since it uses less digits than its factorization.

503138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 503138 is about 709.3222116923. The cubic root of 503138 is about 79.5357485944.

The spelling of 503138 in words is "five hundred three thousand, one hundred thirty-eight".