65005345 has 8 divisors (see below), whose sum is σ = 78050664. Its totient is φ = 51974784.

The previous prime is 65005319. The next prime is 65005361. The reversal of 65005345 is 54350056.

It can be written as a sum of positive squares in 4 ways, for example, as 33454656 + 31550689 = 5784^2 + 5617^2 .

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 65005345 - 2⁷ = 65005217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12357 + ... + 16813.

It is an arithmetic number, because the mean of its divisors is an integer number (9756333).

Almost surely, 2^65005345 is an apocalyptic number.

It is an amenable number.

65005345 is a deficient number, since it is larger than the sum of its proper divisors (13045319).

65005345 is a wasteful number, since it uses less digits than its factorization.

65005345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7379.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 65005345 is about 8062.5892243125. The cubic root of 65005345 is about 402.0835964692.

The spelling of 65005345 in words is "sixty-five million, five thousand, three hundred forty-five".