91008059 has 2 divisors, whose sum is σ = 91008060. Its totient is φ = 91008058.

The previous prime is 91008011. The next prime is 91008083. The reversal of 91008059 is 95080019.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91008059 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91008859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45504029 + 45504030.

It is an arithmetic number, because the mean of its divisors is an integer number (45504030).

Almost surely, 2^91008059 is an apocalyptic number.

91008059 is a deficient number, since it is larger than the sum of its proper divisors (1).

91008059 is an equidigital number, since it uses as much as digits as its factorization.

91008059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 91008059 is about 9539.8144111927. The cubic root of 91008059 is about 449.8074221246.

The spelling of 91008059 in words is "ninety-one million, eight thousand, fifty-nine".