1056705065 has 8 divisors (see below), whose sum is σ = 1365588168. Its totient is φ = 780336000.

The previous prime is 1056705061. The next prime is 1056705071. The reversal of 1056705065 is 5605076501.

It can be written as a sum of positive squares in 4 ways, for example, as 16 + 1056705049 = 4^2 + 32507^2 .

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

It is not a de Polignac number, because 1056705065 - 2² = 1056705061 is a prime.

It is a super-2 number, since 2×1056705065² = 2233251188793308450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056705061) 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, 8128436 + ... + 8128565.

It is an arithmetic number, because the mean of its divisors is an integer number (170698521).

Almost surely, 2^1056705065 is an apocalyptic number.

It is an amenable number.

1056705065 is a deficient number, since it is larger than the sum of its proper divisors (308883103).

1056705065 is a wasteful number, since it uses less digits than its factorization.

1056705065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16257019.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 1056705065 is about 32507.0002461008. Note that the first 3 decimals coincide. The cubic root of 1056705065 is about 1018.5552611072. Note that the first 3 decimals are identical.

The spelling of 1056705065 in words is "one billion, fifty-six million, seven hundred five thousand, sixty-five".