81364483 has 2 divisors, whose sum is σ = 81364484. Its totient is φ = 81364482.

The previous prime is 81364477. The next prime is 81364513. The reversal of 81364483 is 38446318.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-81364483 is a prime.

It is not a weakly prime, because it can be changed into another prime (81364433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40682241 + 40682242.

It is an arithmetic number, because the mean of its divisors is an integer number (40682242).

Almost surely, 2^81364483 is an apocalyptic number.

81364483 is a deficient number, since it is larger than the sum of its proper divisors (1).

81364483 is an equidigital number, since it uses as much as digits as its factorization.

81364483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 37.

The square root of 81364483 is about 9020.2263275375. The cubic root of 81364483 is about 433.3228821280.

The spelling of 81364483 in words is "eighty-one million, three hundred sixty-four thousand, four hundred eighty-three".