9108091 has 2 divisors, whose sum is σ = 9108092. Its totient is φ = 9108090.

The previous prime is 9108067. The next prime is 9108133. The reversal of 9108091 is 1908019.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9108091 - 2¹¹ = 9106043 is a prime.

It is not a weakly prime, because it can be changed into another prime (9108061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4554045 + 4554046.

It is an arithmetic number, because the mean of its divisors is an integer number (4554046).

Almost surely, 2^9108091 is an apocalyptic number.

9108091 is a deficient number, since it is larger than the sum of its proper divisors (1).

9108091 is an equidigital number, since it uses as much as digits as its factorization.

9108091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 9108091 is about 3017.9613980301. The cubic root of 9108091 is about 208.8378052218.

The spelling of 9108091 in words is "nine million, one hundred eight thousand, ninety-one".