12123873 has 12 divisors (see below), whose sum is σ = 18542628. Its totient is φ = 7607040.

The previous prime is 12123857. The next prime is 12123877. The reversal of 12123873 is 37832121.

It can be written as a sum of positive squares in 2 ways, for example, as 10712529 + 1411344 = 3273^2 + 1188^2 .

It is not a de Polignac number, because 12123873 - 2⁴ = 12123857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12123877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39468 + ... + 39773.

It is an arithmetic number, because the mean of its divisors is an integer number (1545219).

Almost surely, 2^12123873 is an apocalyptic number.

It is an amenable number.

12123873 is a deficient number, since it is larger than the sum of its proper divisors (6418755).

12123873 is a wasteful number, since it uses less digits than its factorization.

12123873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79264 (or 79261 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 12123873 is about 3481.9352377665. The cubic root of 12123873 is about 229.7279265508.

Adding to 12123873 its reverse (37832121), we get a palindrome (49955994).

It can be divided in two parts, 12123 and 873, that added together give a square (12996 = 114²).

The spelling of 12123873 in words is "twelve million, one hundred twenty-three thousand, eight hundred seventy-three".