81483671 has 2 divisors, whose sum is σ = 81483672. Its totient is φ = 81483670.

The previous prime is 81483659. The next prime is 81483679. The reversal of 81483671 is 17638418.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 81483671 - 2¹⁰ = 81482647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (81483679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40741835 + 40741836.

It is an arithmetic number, because the mean of its divisors is an integer number (40741836).

Almost surely, 2^81483671 is an apocalyptic number.

81483671 is a deficient number, since it is larger than the sum of its proper divisors (1).

81483671 is an equidigital number, since it uses as much as digits as its factorization.

81483671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 38.

The square root of 81483671 is about 9026.8306176642. The cubic root of 81483671 is about 433.5343654341.

The spelling of 81483671 in words is "eighty-one million, four hundred eighty-three thousand, six hundred seventy-one".