3403181 has 2 divisors, whose sum is σ = 3403182. Its totient is φ = 3403180.

The previous prime is 3403177. The next prime is 3403193. The reversal of 3403181 is 1813043.

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., 3031081 + 372100 = 1741^2 + 610^2 .

It is a cyclic number.

It is not a de Polignac number, because 3403181 - 2² = 3403177 is a prime.

It is a super-2 number, since 2×3403181² = 23163281837522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3403151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1701590 + 1701591.

It is an arithmetic number, because the mean of its divisors is an integer number (1701591).

Almost surely, 2^3403181 is an apocalyptic number.

It is an amenable number.

3403181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3403181 is an equidigital number, since it uses as much as digits as its factorization.

3403181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 3403181 is about 1844.7712595333. The cubic root of 3403181 is about 150.4163396359.

The spelling of 3403181 in words is "three million, four hundred three thousand, one hundred eighty-one".