81467059 has 2 divisors, whose sum is σ = 81467060. Its totient is φ = 81467058.

The previous prime is 81467047. The next prime is 81467093. The reversal of 81467059 is 95076418.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 81467059 - 2¹⁷ = 81335987 is a prime.

It is not a weakly prime, because it can be changed into another prime (81467159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40733529 + 40733530.

It is an arithmetic number, because the mean of its divisors is an integer number (40733530).

Almost surely, 2^81467059 is an apocalyptic number.

81467059 is a deficient number, since it is larger than the sum of its proper divisors (1).

81467059 is an equidigital number, since it uses as much as digits as its factorization.

81467059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 81467059 is about 9025.9104249931. The cubic root of 81467059 is about 433.5049020162.

The spelling of 81467059 in words is "eighty-one million, four hundred sixty-seven thousand, fifty-nine".