12736089 has 16 divisors (see below), whose sum is σ = 19689600. Its totient is φ = 8121168.

The previous prime is 12736081. The next prime is 12736093. The reversal of 12736089 is 98063721.

It is not a de Polignac number, because 12736089 - 2³ = 12736081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12736081) 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 15 ways as a sum of consecutive naturals, for example, 9634 + ... + 10875.

It is an arithmetic number, because the mean of its divisors is an integer number (1230600).

Almost surely, 2^12736089 is an apocalyptic number.

It is an amenable number.

12736089 is a deficient number, since it is larger than the sum of its proper divisors (6953511).

12736089 is a wasteful number, since it uses less digits than its factorization.

12736089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20541 (or 20535 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12736089 is about 3568.7657530300. The cubic root of 12736089 is about 233.5314424077.

It can be divided in two parts, 127360 and 89, that added together give a square (127449 = 357²).

The spelling of 12736089 in words is "twelve million, seven hundred thirty-six thousand, eighty-nine".