945070565 has 4 divisors (see below), whose sum is σ = 1134084684. Its totient is φ = 756056448.

The previous prime is 945070561. The next prime is 945070597. The reversal of 945070565 is 565070549.

It is a Cunningham number, because it is equal to 30742²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 565070549 = 37 ⋅15272177.

It can be written as a sum of positive squares in 2 ways, for example, as 340254916 + 604815649 = 18446^2 + 24593^2 .

It is a cyclic number.

It is not a de Polignac number, because 945070565 - 2² = 945070561 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945070561) 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, 94507052 + ... + 94507061.

It is an arithmetic number, because the mean of its divisors is an integer number (283521171).

Almost surely, 2^945070565 is an apocalyptic number.

It is an amenable number.

945070565 is a deficient number, since it is larger than the sum of its proper divisors (189014119).

945070565 is a wasteful number, since it uses less digits than its factorization.

945070565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189014118.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 945070565 is about 30742.0000162644. Note that the first 4 decimals coincide. The cubic root of 945070565 is about 981.3443181411.

The spelling of 945070565 in words is "nine hundred forty-five million, seventy thousand, five hundred sixty-five".