4031081 has 2 divisors, whose sum is σ = 4031082. Its totient is φ = 4031080.

The previous prime is 4031047. The next prime is 4031089. The reversal of 4031081 is 1801304.

It is a happy number.

4031081 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., 3031081 + 1000000 = 1741^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 4031081 - 2¹⁸ = 3768937 is a prime.

It is a super-2 number, since 2×4031081² = 32499228057122, which contains 22 as substring.

It is a plaindrome in base 6.

It is not a weakly prime, because it can be changed into another prime (4031089) 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, 2015540 + 2015541.

It is an arithmetic number, because the mean of its divisors is an integer number (2015541).

Almost surely, 2^4031081 is an apocalyptic number.

It is an amenable number.

4031081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4031081 is an equidigital number, since it uses as much as digits as its factorization.

4031081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 4031081 is about 2007.7552141633. The cubic root of 4031081 is about 159.1501949579.

Adding to 4031081 its reverse (1801304), we get a palindrome (5832385).

The spelling of 4031081 in words is "four million, thirty-one thousand, eighty-one".