1065705517 has 4 divisors (see below), whose sum is σ = 1065776796. Its totient is φ = 1065634240.

The previous prime is 1065705493. The next prime is 1065705521. The reversal of 1065705517 is 7155075601.

1065705517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 745617636 + 320087881 = 27306^2 + 17891^2 .

It is a cyclic number.

It is not a de Polignac number, because 1065705517 - 2¹¹ = 1065703469 is a prime.

It is a super-2 number, since 2×1065705517² = 2271456497928474578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065705617) 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, 3628 + ... + 46309.

It is an arithmetic number, because the mean of its divisors is an integer number (266444199).

Almost surely, 2^1065705517 is an apocalyptic number.

It is an amenable number.

1065705517 is a deficient number, since it is larger than the sum of its proper divisors (71279).

1065705517 is an equidigital number, since it uses as much as digits as its factorization.

1065705517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71278.

The product of its (nonzero) digits is 36750, while the sum is 37.

The square root of 1065705517 is about 32645.1453818175. The cubic root of 1065705517 is about 1021.4389267779.

The spelling of 1065705517 in words is "one billion, sixty-five million, seven hundred five thousand, five hundred seventeen".