6439082131 has 2 divisors, whose sum is σ = 6439082132. Its totient is φ = 6439082130.

The previous prime is 6439082119. The next prime is 6439082179. The reversal of 6439082131 is 1312809346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6439082131 - 2¹¹ = 6439080083 is a prime.

It is a super-2 number, since 2×6439082131² = 82923557379527002322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6439085131) 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, 3219541065 + 3219541066.

It is an arithmetic number, because the mean of its divisors is an integer number (3219541066).

Almost surely, 2^6439082131 is an apocalyptic number.

6439082131 is a deficient number, since it is larger than the sum of its proper divisors (1).

6439082131 is an equidigital number, since it uses as much as digits as its factorization.

6439082131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 6439082131 is about 80243.8915494507. The cubic root of 6439082131 is about 1860.4070996800.

The spelling of 6439082131 in words is "six billion, four hundred thirty-nine million, eighty-two thousand, one hundred thirty-one".