1065705493 has 2 divisors, whose sum is σ = 1065705494. Its totient is φ = 1065705492.

The previous prime is 1065705467. The next prime is 1065705521. The reversal of 1065705493 is 3945075601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 727219089 + 338486404 = 26967^2 + 18398^2 .

It is an emirp because it is prime and its reverse (3945075601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1065705493 - 2⁵ = 1065705461 is a prime.

It is a super-2 number, since 2×1065705493² = 2271456395620746098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1065705463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532852746 + 532852747.

It is an arithmetic number, because the mean of its divisors is an integer number (532852747).

Almost surely, 2^1065705493 is an apocalyptic number.

It is an amenable number.

1065705493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065705493 is an equidigital number, since it uses as much as digits as its factorization.

1065705493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 1065705493 is about 32645.1450142284. The cubic root of 1065705493 is about 1021.4389191102.

The spelling of 1065705493 in words is "one billion, sixty-five million, seven hundred five thousand, four hundred ninety-three".