91341161 has 2 divisors, whose sum is σ = 91341162. Its totient is φ = 91341160.

The previous prime is 91341127. The next prime is 91341193. The reversal of 91341161 is 16114319.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91317136 + 24025 = 9556^2 + 155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91341161 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91341161.

It is not a weakly prime, because it can be changed into another prime (91344161) 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, 45670580 + 45670581.

It is an arithmetic number, because the mean of its divisors is an integer number (45670581).

Almost surely, 2^91341161 is an apocalyptic number.

It is an amenable number.

91341161 is a deficient number, since it is larger than the sum of its proper divisors (1).

91341161 is an equidigital number, since it uses as much as digits as its factorization.

91341161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 26.

The square root of 91341161 is about 9557.2569809543. The cubic root of 91341161 is about 450.3555395946.

The spelling of 91341161 in words is "ninety-one million, three hundred forty-one thousand, one hundred sixty-one".