4036181 has 2 divisors, whose sum is σ = 4036182. Its totient is φ = 4036180.

The previous prime is 4036177. The next prime is 4036183. The reversal of 4036181 is 1816304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4036081 + 100 = 2009^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 4036181 - 2² = 4036177 is a prime.

It is a super-2 number, since 2×4036181² = 32581514129522, which contains 22 as substring.

Together with 4036183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4036183) 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, 2018090 + 2018091.

It is an arithmetic number, because the mean of its divisors is an integer number (2018091).

Almost surely, 2^4036181 is an apocalyptic number.

It is an amenable number.

4036181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4036181 is an equidigital number, since it uses as much as digits as its factorization.

4036181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 4036181 is about 2009.0248878498. The cubic root of 4036181 is about 159.2172839874.

The spelling of 4036181 in words is "four million, thirty-six thousand, one hundred eighty-one".