12126750 has 128 divisors (see below), whose sum is σ = 34145280. Its totient is φ = 2851200.

The previous prime is 12126749. The next prime is 12126757. The reversal of 12126750 is 5762121.

It is a self number, because there is not a number n which added to its sum of digits gives 12126750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12126757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 327732 + ... + 327768.

It is an arithmetic number, because the mean of its divisors is an integer number (266760).

Almost surely, 2^12126750 is an apocalyptic number.

12126750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12126750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17072640).

12126750 is an abundant number, since it is smaller than the sum of its proper divisors (22018530).

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

12126750 is a wasteful number, since it uses less digits than its factorization.

12126750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 12126750 is about 3482.3483455852. The cubic root of 12126750 is about 229.7460966238.

Adding to 12126750 its reverse (5762121), we get a palindrome (17888871).

The spelling of 12126750 in words is "twelve million, one hundred twenty-six thousand, seven hundred fifty".