12125040 has 80 divisors (see below), whose sum is σ = 39580800. Its totient is φ = 3062016.

The previous prime is 12125033. The next prime is 12125041. The reversal of 12125040 is 4052121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12125041) 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, 3231 + ... + 5889.

It is an arithmetic number, because the mean of its divisors is an integer number (494760).

Almost surely, 2^12125040 is an apocalyptic number.

12125040 is a gapful number since it is divisible by the number (10) 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 12125040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19790400).

12125040 is an abundant number, since it is smaller than the sum of its proper divisors (27455760).

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

12125040 is a wasteful number, since it uses less digits than its factorization.

12125040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694 (or 2688 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 12125040 is about 3482.1028129566. The cubic root of 12125040 is about 229.7352972397.

Adding to 12125040 its reverse (4052121), we get a palindrome (16177161).

The spelling of 12125040 in words is "twelve million, one hundred twenty-five thousand, forty".