12705065 has 8 divisors (see below), whose sum is σ = 15266760. Its totient is φ = 10150272.

The previous prime is 12705061. The next prime is 12705067. The reversal of 12705065 is 56050721.

12705065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 795664 + 11909401 = 892^2 + 3451^2 .

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 12705065 - 2² = 12705061 is a prime.

It is a super-2 number, since 2×12705065² = 322837353308450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12705061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4157 + ... + 6533.

It is an arithmetic number, because the mean of its divisors is an integer number (1908345).

Almost surely, 2^12705065 is an apocalyptic number.

It is an amenable number.

12705065 is a deficient number, since it is larger than the sum of its proper divisors (2561695).

12705065 is a wasteful number, since it uses less digits than its factorization.

12705065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 12705065 is about 3564.4165020379. The cubic root of 12705065 is about 233.3416675028.

Adding to 12705065 its reverse (56050721), we get a palindrome (68755786).

The spelling of 12705065 in words is "twelve million, seven hundred five thousand, sixty-five".