12789136 has 20 divisors (see below), whose sum is σ = 24855552. Its totient is φ = 6374816.

The previous prime is 12789121. The next prime is 12789149. The reversal of 12789136 is 63198721.

It is a junction number, because it is equal to n+sod(n) for n = 12789095 and 12789104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5085 + ... + 7171.

Almost surely, 2^12789136 is an apocalyptic number.

12789136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12789136 is a deficient number, since it is larger than the sum of its proper divisors (12066416).

12789136 is a wasteful number, since it uses less digits than its factorization.

12789136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478 (or 2472 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 12789136 is about 3576.1901515440. The cubic root of 12789136 is about 233.8552200566.

The spelling of 12789136 in words is "twelve million, seven hundred eighty-nine thousand, one hundred thirty-six".