91082801 has 2 divisors, whose sum is σ = 91082802. Its totient is φ = 91082800.

The previous prime is 91082791. The next prime is 91082837. The reversal of 91082801 is 10828019.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89794576 + 1288225 = 9476^2 + 1135^2 .

It is an emirp because it is prime and its reverse (10828019) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91082801 - 2¹⁰ = 91081777 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91082861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45541400 + 45541401.

It is an arithmetic number, because the mean of its divisors is an integer number (45541401).

Almost surely, 2^91082801 is an apocalyptic number.

It is an amenable number.

91082801 is a deficient number, since it is larger than the sum of its proper divisors (1).

91082801 is an equidigital number, since it uses as much as digits as its factorization.

91082801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 91082801 is about 9543.7309790249. The cubic root of 91082801 is about 449.9305259002.

The spelling of 91082801 in words is "ninety-one million, eighty-two thousand, eight hundred one".