12459128 has 48 divisors (see below), whose sum is σ = 26222280. Its totient is φ = 5544000.

The previous prime is 12459127. The next prime is 12459133. The reversal of 12459128 is 82195421.

It is a junction number, because it is equal to n+sod(n) for n = 12459094 and 12459103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12459127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58943 + ... + 59153.

Almost surely, 2^12459128 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 12459128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13111140).

12459128 is an abundant number, since it is smaller than the sum of its proper divisors (13763152).

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

12459128 is a wasteful number, since it uses less digits than its factorization.

12459128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 285 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 12459128 is about 3529.7489995749. The cubic root of 12459128 is about 231.8262174606.

The spelling of 12459128 in words is "twelve million, four hundred fifty-nine thousand, one hundred twenty-eight".