12789135 has 24 divisors (see below), whose sum is σ = 22548240. Its totient is φ = 6703872.

The previous prime is 12789121. The next prime is 12789149. The reversal of 12789135 is 53198721.

12789135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12789121) and next prime (12789149).

It is not a de Polignac number, because 12789135 - 2²⁰ = 11740559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12789135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (939510).

Almost surely, 2^12789135 is an apocalyptic number.

12789135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12789135 is a deficient number, since it is larger than the sum of its proper divisors (9759105).

12789135 is a wasteful number, since it uses less digits than its factorization.

12789135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4887 (or 4884 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 12789135 is about 3576.1900117304. The cubic root of 12789135 is about 233.8552139614.

The spelling of 12789135 in words is "twelve million, seven hundred eighty-nine thousand, one hundred thirty-five".