12128626 has 16 divisors (see below), whose sum is σ = 19139328. Its totient is φ = 5756400.

The previous prime is 12128621. The next prime is 12128639. The reversal of 12128626 is 62682121.

It is a junction number, because it is equal to n+sod(n) for n = 12128594 and 12128603.

It is not an unprimeable number, because it can be changed into a prime (12128621) 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 7 ways as a sum of consecutive naturals, for example, 1441 + ... + 5131.

It is an arithmetic number, because the mean of its divisors is an integer number (1196208).

Almost surely, 2^12128626 is an apocalyptic number.

12128626 is a deficient number, since it is larger than the sum of its proper divisors (7010702).

12128626 is a wasteful number, since it uses less digits than its factorization.

12128626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777.

The product of its digits is 2304, while the sum is 28.

The square root of 12128626 is about 3482.6176936322. The cubic root of 12128626 is about 229.7579432013.

The spelling of 12128626 in words is "twelve million, one hundred twenty-eight thousand, six hundred twenty-six".