4181491331 has 2 divisors, whose sum is σ = 4181491332. Its totient is φ = 4181491330.

The previous prime is 4181491283. The next prime is 4181491337. The reversal of 4181491331 is 1331941814.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4181491331 - 2¹⁸ = 4181229187 is a prime.

It is a super-2 number, since 2×4181491331² = 34969739502456303122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4181491291 and 4181491300.

It is not a weakly prime, because it can be changed into another prime (4181491337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2090745665 + 2090745666.

It is an arithmetic number, because the mean of its divisors is an integer number (2090745666).

Almost surely, 2^4181491331 is an apocalyptic number.

4181491331 is a deficient number, since it is larger than the sum of its proper divisors (1).

4181491331 is an equidigital number, since it uses as much as digits as its factorization.

4181491331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 4181491331 is about 64664.4518340641. The cubic root of 4181491331 is about 1611.0551229584.

The spelling of 4181491331 in words is "four billion, one hundred eighty-one million, four hundred ninety-one thousand, three hundred thirty-one".