3181485539 has 2 divisors, whose sum is σ = 3181485540. Its totient is φ = 3181485538.

The previous prime is 3181485521. The next prime is 3181485611. The reversal of 3181485539 is 9355841813.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3181485539 - 2⁸ = 3181485283 is a prime.

It is a super-2 number, since 2×3181485539² = 20243700469732241042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3181485493 and 3181485502.

It is not a weakly prime, because it can be changed into another prime (3181485239) 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, 1590742769 + 1590742770.

It is an arithmetic number, because the mean of its divisors is an integer number (1590742770).

Almost surely, 2^3181485539 is an apocalyptic number.

3181485539 is a deficient number, since it is larger than the sum of its proper divisors (1).

3181485539 is an equidigital number, since it uses as much as digits as its factorization.

3181485539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 47.

The square root of 3181485539 is about 56404.6588412695. The cubic root of 3181485539 is about 1470.7651066670.

The spelling of 3181485539 in words is "three billion, one hundred eighty-one million, four hundred eighty-five thousand, five hundred thirty-nine".