4081331 has 2 divisors, whose sum is σ = 4081332. Its totient is φ = 4081330.

The previous prime is 4081307. The next prime is 4081351. The reversal of 4081331 is 1331804.

It is a happy number.

It is an a-pointer prime, because the next prime (4081351) can be obtained adding 4081331 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4081331 - 2¹⁸ = 3819187 is a prime.

It is a super-2 number, since 2×4081331² = 33314525463122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4081351) 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, 2040665 + 2040666.

It is an arithmetic number, because the mean of its divisors is an integer number (2040666).

Almost surely, 2^4081331 is an apocalyptic number.

4081331 is a deficient number, since it is larger than the sum of its proper divisors (1).

4081331 is an equidigital number, since it uses as much as digits as its factorization.

4081331 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 4081331 is about 2020.2304324012. The cubic root of 4081331 is about 159.8087689286.

The spelling of 4081331 in words is "four million, eighty-one thousand, three hundred thirty-one".