3065561 has 8 divisors (see below), whose sum is σ = 3258120. Its totient is φ = 2878848.

The previous prime is 3065549. The next prime is 3065563. The reversal of 3065561 is 1655603.

It can be written as a sum of positive squares in 4 ways, for example, as 1336336 + 1729225 = 1156^2 + 1315^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3065561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3065561.

It is not an unprimeable number, because it can be changed into a prime (3065563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356 + ... + 2501.

It is an arithmetic number, because the mean of its divisors is an integer number (407265).

Almost surely, 2^3065561 is an apocalyptic number.

It is an amenable number.

3065561 is a deficient number, since it is larger than the sum of its proper divisors (192559).

3065561 is a wasteful number, since it uses less digits than its factorization.

3065561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 3065561 is about 1750.8743530020. The cubic root of 3065561 is about 145.2680100668.

The spelling of 3065561 in words is "three million, sixty-five thousand, five hundred sixty-one".