3201181 has 2 divisors, whose sum is σ = 3201182. Its totient is φ = 3201180.

The previous prime is 3201179. The next prime is 3201197. The reversal of 3201181 is 1811023.

3201181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (3201197) can be obtained adding 3201181 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2752281 + 448900 = 1659^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 3201181 - 2¹ = 3201179 is a prime.

It is a super-2 number, since 2×3201181² = 20495119589522, which contains 22 as substring.

Together with 3201179, 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 (3201131) 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, 1600590 + 1600591.

It is an arithmetic number, because the mean of its divisors is an integer number (1600591).

Almost surely, 2^3201181 is an apocalyptic number.

It is an amenable number.

3201181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3201181 is an equidigital number, since it uses as much as digits as its factorization.

3201181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 3201181 is about 1789.1844510838. The cubic root of 3201181 is about 147.3793862209.

The spelling of 3201181 in words is "three million, two hundred one thousand, one hundred eighty-one".