500045123 has 4 divisors (see below), whose sum is σ = 529459560. Its totient is φ = 470630688.

The previous prime is 500045113. The next prime is 500045131. The reversal of 500045123 is 321540005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321540005 = 5 ⋅64308001.

It is a cyclic number.

It is not a de Polignac number, because 500045123 - 2¹⁰ = 500044099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 500045095 and 500045104.

It is not an unprimeable number, because it can be changed into a prime (500045113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14707193 + ... + 14707226.

It is an arithmetic number, because the mean of its divisors is an integer number (132364890).

Almost surely, 2^500045123 is an apocalyptic number.

500045123 is a deficient number, since it is larger than the sum of its proper divisors (29414437).

500045123 is a wasteful number, since it uses less digits than its factorization.

500045123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29414436.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 500045123 is about 22361.6887331883. The cubic root of 500045123 is about 793.7244013651.

Adding to 500045123 its reverse (321540005), we get a palindrome (821585128).

The spelling of 500045123 in words is "five hundred million, forty-five thousand, one hundred twenty-three".