500123 has 16 divisors (see below), whose sum is σ = 596736. Its totient is φ = 414720.

The previous prime is 500119. The next prime is 500153. The reversal of 500123 is 321005.

It is a cyclic number.

It is not a de Polignac number, because 500123 - 2² = 500119 is a prime.

It is an Ulam number.

It is a Duffinian number.

500123 is a modest number, since divided by 123 gives 5 as remainder.

It is not an unprimeable number, because it can be changed into a prime (500113) 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 15 ways as a sum of consecutive naturals, for example, 6815 + ... + 6887.

It is an arithmetic number, because the mean of its divisors is an integer number (37296).

2⁵⁰⁰¹²³ is an apocalyptic number.

500123 is a deficient number, since it is larger than the sum of its proper divisors (96613).

500123 is a wasteful number, since it uses less digits than its factorization.

500123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 500123 is about 707.1937499724. The cubic root of 500123 is about 79.3765604091.

Adding to 500123 its reverse (321005), we get a palindrome (821128).

The spelling of 500123 in words is "five hundred thousand, one hundred twenty-three".