3018181 has 2 divisors, whose sum is σ = 3018182. Its totient is φ = 3018180.

The previous prime is 3018173. The next prime is 3018187. The reversal of 3018181 is 1818103.

3018181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2992900 + 25281 = 1730^2 + 159^2 .

It is a cyclic number.

It is not a de Polignac number, because 3018181 - 2³ = 3018173 is a prime.

It is a super-2 number, since 2×3018181² = 18218833097522, which contains 22 as substring.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3018187) 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, 1509090 + 1509091.

It is an arithmetic number, because the mean of its divisors is an integer number (1509091).

Almost surely, 2^3018181 is an apocalyptic number.

It is an amenable number.

3018181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3018181 is an equidigital number, since it uses as much as digits as its factorization.

3018181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 3018181 is about 1737.2912824279. The cubic root of 3018181 is about 144.5157208823.

The spelling of 3018181 in words is "three million, eighteen thousand, one hundred eighty-one".