12865134 has 8 divisors (see below), whose sum is σ = 25730280. Its totient is φ = 4288376.

The previous prime is 12865133. The next prime is 12865157. The reversal of 12865134 is 43156821.

12865134 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

12865134 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12865133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072089 + ... + 1072100.

It is an arithmetic number, because the mean of its divisors is an integer number (3216285).

Almost surely, 2^12865134 is an apocalyptic number.

12865134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12865134 is a wasteful number, since it uses less digits than its factorization.

12865134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144194.

The product of its digits is 5760, while the sum is 30.

The square root of 12865134 is about 3586.7999665440. The cubic root of 12865134 is about 234.3175249645.

The spelling of 12865134 in words is "twelve million, eight hundred sixty-five thousand, one hundred thirty-four".