3087181 has 2 divisors, whose sum is σ = 3087182. Its totient is φ = 3087180.

The previous prime is 3087179. The next prime is 3087199. The reversal of 3087181 is 1817803.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2975625 + 111556 = 1725^2 + 334^2 .

It is a cyclic number.

It is not a de Polignac number, because 3087181 - 2¹ = 3087179 is a prime.

It is a super-2 number, since 2×3087181² = 19061373053522, which contains 22 as substring.

Together with 3087179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3087281) 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, 1543590 + 1543591.

It is an arithmetic number, because the mean of its divisors is an integer number (1543591).

Almost surely, 2^3087181 is an apocalyptic number.

It is an amenable number.

3087181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3087181 is an equidigital number, since it uses as much as digits as its factorization.

3087181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 3087181 is about 1757.0375636281. The cubic root of 3087181 is about 145.6087133265.

The spelling of 3087181 in words is "three million, eighty-seven thousand, one hundred eighty-one".