318489123 has 16 divisors (see below), whose sum is σ = 433678976. Its totient is φ = 207852480.

The previous prime is 318489079. The next prime is 318489161. The reversal of 318489123 is 321984813.

It is not a de Polignac number, because 318489123 - 2¹⁰ = 318488099 is a prime.

It is a super-3 number, since 3×318489123³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318489323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27903 + ... + 37623.

It is an arithmetic number, because the mean of its divisors is an integer number (27104936).

Almost surely, 2^318489123 is an apocalyptic number.

318489123 is a deficient number, since it is larger than the sum of its proper divisors (115189853).

318489123 is a wasteful number, since it uses less digits than its factorization.

318489123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9954.

The product of its digits is 41472, while the sum is 39.

The square root of 318489123 is about 17846.2635585155. The cubic root of 318489123 is about 682.9121952883.

The spelling of 318489123 in words is "three hundred eighteen million, four hundred eighty-nine thousand, one hundred twenty-three".