3085561 has 2 divisors, whose sum is σ = 3085562. Its totient is φ = 3085560.

The previous prime is 3085553. The next prime is 3085567. The reversal of 3085561 is 1655803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3083536 + 2025 = 1756^2 + 45^2 .

It is a cyclic number.

It is not a de Polignac number, because 3085561 - 2³ = 3085553 is a prime.

3085561 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3085567) 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 as a sum of consecutive naturals, namely, 1542780 + 1542781.

It is an arithmetic number, because the mean of its divisors is an integer number (1542781).

Almost surely, 2^3085561 is an apocalyptic number.

It is an amenable number.

3085561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3085561 is an equidigital number, since it uses as much as digits as its factorization.

3085561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 3085561 is about 1756.5764998997. The cubic root of 3085561 is about 145.5832394516.

The spelling of 3085561 in words is "three million, eighty-five thousand, five hundred sixty-one".