3018881 has 2 divisors, whose sum is σ = 3018882. Its totient is φ = 3018880.

The previous prime is 3018803. The next prime is 3018919. The reversal of 3018881 is 1888103.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2890000 + 128881 = 1700^2 + 359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3018881 is a prime.

It is a super-2 number, since 2×3018881² = 18227284984322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3018181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1509440 + 1509441.

It is an arithmetic number, because the mean of its divisors is an integer number (1509441).

Almost surely, 2^3018881 is an apocalyptic number.

It is an amenable number.

3018881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3018881 is an equidigital number, since it uses as much as digits as its factorization.

3018881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 3018881 is about 1737.4927337978. The cubic root of 3018881 is about 144.5268924218.

The spelling of 3018881 in words is "three million, eighteen thousand, eight hundred eighty-one".