12125724 has 48 divisors (see below), whose sum is σ = 32081280. Its totient is φ = 3533760.

The previous prime is 12125723. The next prime is 12125731. The reversal of 12125724 is 42752121.

It is a junction number, because it is equal to n+sod(n) for n = 12125694 and 12125703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12125723) 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, 919 + ... + 5009.

It is an arithmetic number, because the mean of its divisors is an integer number (668360).

Almost surely, 2^12125724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12125724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16040640).

12125724 is an abundant number, since it is smaller than the sum of its proper divisors (19955556).

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

12125724 is a wasteful number, since it uses less digits than its factorization.

12125724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130 (or 4128 counting only the distinct ones).

The product of its digits is 1120, while the sum is 24.

The square root of 12125724 is about 3482.2010280855. The cubic root of 12125724 is about 229.7396171151.

Adding to 12125724 its reverse (42752121), we get a palindrome (54877845).

The spelling of 12125724 in words is "twelve million, one hundred twenty-five thousand, seven hundred twenty-four".