12124872 has 48 divisors (see below), whose sum is σ = 33546240. Its totient is φ = 3954528.

The previous prime is 12124867. The next prime is 12124891. The reversal of 12124872 is 27842121.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1593 + ... + 5175.

It is an arithmetic number, because the mean of its divisors is an integer number (698880).

Almost surely, 2^12124872 is an apocalyptic number.

12124872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12124872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16773120).

12124872 is an abundant number, since it is smaller than the sum of its proper divisors (21421368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12124872 is a wasteful number, since it uses less digits than its factorization.

12124872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642 (or 3635 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 12124872 is about 3482.0786895187. The cubic root of 12124872 is about 229.7342361928.

Adding to 12124872 its reverse (27842121), we get a palindrome (39966993).

It can be divided in two parts, 12124 and 872, that added together give a square (12996 = 114²).

The spelling of 12124872 in words is "twelve million, one hundred twenty-four thousand, eight hundred seventy-two".