12758065 has 8 divisors (see below), whose sum is σ = 15336360. Its totient is φ = 10188672.

The previous prime is 12758051. The next prime is 12758071. The reversal of 12758065 is 56085721.

It can be written as a sum of positive squares in 4 ways, for example, as 7268416 + 5489649 = 2696^2 + 2343^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12758065 - 2¹¹ = 12756017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12758065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501 + ... + 5269.

It is an arithmetic number, because the mean of its divisors is an integer number (1917045).

Almost surely, 2^12758065 is an apocalyptic number.

It is an amenable number.

12758065 is a deficient number, since it is larger than the sum of its proper divisors (2578295).

12758065 is an equidigital number, since it uses as much as digits as its factorization.

12758065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 12758065 is about 3571.8433616272. The cubic root of 12758065 is about 233.6656839847.

The spelling of 12758065 in words is "twelve million, seven hundred fifty-eight thousand, sixty-five".