3042581 has 2 divisors, whose sum is σ = 3042582. Its totient is φ = 3042580.

The previous prime is 3042577. The next prime is 3042607. The reversal of 3042581 is 1852403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 401956 = 1625^2 + 634^2 .

It is a cyclic number.

It is not a de Polignac number, because 3042581 - 2² = 3042577 is a prime.

It is a super-2 number, since 2×3042581² = 18514598283122, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3042181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1521290 + 1521291.

It is an arithmetic number, because the mean of its divisors is an integer number (1521291).

Almost surely, 2^3042581 is an apocalyptic number.

It is an amenable number.

3042581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3042581 is an equidigital number, since it uses as much as digits as its factorization.

3042581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 3042581 is about 1744.2995728945. The cubic root of 3042581 is about 144.9041141728.

Adding to 3042581 its reverse (1852403), we get a palindrome (4894984).

The spelling of 3042581 in words is "three million, forty-two thousand, five hundred eighty-one".