12128056 has 8 divisors (see below), whose sum is σ = 22740120. Its totient is φ = 6064024.

The previous prime is 12128027. The next prime is 12128059. The reversal of 12128056 is 65082121.

12128056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12128056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12128059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757996 + ... + 758011.

It is an arithmetic number, because the mean of its divisors is an integer number (2842515).

Almost surely, 2^12128056 is an apocalyptic number.

It is an amenable number.

12128056 is a deficient number, since it is larger than the sum of its proper divisors (10612064).

12128056 is a wasteful number, since it uses less digits than its factorization.

12128056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516013 (or 1516009 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12128056 is about 3482.5358576761. The cubic root of 12128056 is about 229.7543438907.

The spelling of 12128056 in words is "twelve million, one hundred twenty-eight thousand, fifty-six".