3312581 has 2 divisors, whose sum is σ = 3312582. Its totient is φ = 3312580.

The previous prime is 3312577. The next prime is 3312587. The reversal of 3312581 is 1852133.

3312581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3276100 + 36481 = 1810^2 + 191^2 .

It is a cyclic number.

It is not a de Polignac number, because 3312581 - 2² = 3312577 is a prime.

It is a super-2 number, since 2×3312581² = 21946385763122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3312587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1656290 + 1656291.

It is an arithmetic number, because the mean of its divisors is an integer number (1656291).

Almost surely, 2^3312581 is an apocalyptic number.

It is an amenable number.

3312581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3312581 is an equidigital number, since it uses as much as digits as its factorization.

3312581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 3312581 is about 1820.0497245955. The cubic root of 3312581 is about 149.0695139810.

The spelling of 3312581 in words is "three million, three hundred twelve thousand, five hundred eighty-one".