12896065 has 24 divisors (see below), whose sum is σ = 19391400. Its totient is φ = 8160768.

The previous prime is 12896063. The next prime is 12896089. The reversal of 12896065 is 56069821.

It can be written as a sum of positive squares in 4 ways, for example, as 784 + 12895281 = 28^2 + 3591^2 .

It is not a de Polignac number, because 12896065 - 2¹ = 12896063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12896063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1161 + ... + 5209.

It is an arithmetic number, because the mean of its divisors is an integer number (807975).

Almost surely, 2^12896065 is an apocalyptic number.

It is an amenable number.

12896065 is a deficient number, since it is larger than the sum of its proper divisors (6495335).

12896065 is a wasteful number, since it uses less digits than its factorization.

12896065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081 (or 4074 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 12896065 is about 3591.1091601342. The cubic root of 12896065 is about 234.5051606498.

The spelling of 12896065 in words is "twelve million, eight hundred ninety-six thousand, sixty-five".