91116193 has 4 divisors (see below), whose sum is σ = 104132800. Its totient is φ = 78099588.

The previous prime is 91116187. The next prime is 91116197. The reversal of 91116193 is 39161119.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 91116193 - 2¹³ = 91108001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91116197) 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 in 3 ways as a sum of consecutive naturals, for example, 6508293 + ... + 6508306.

It is an arithmetic number, because the mean of its divisors is an integer number (26033200).

Almost surely, 2^91116193 is an apocalyptic number.

It is an amenable number.

91116193 is a deficient number, since it is larger than the sum of its proper divisors (13016607).

91116193 is a wasteful number, since it uses less digits than its factorization.

91116193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13016606.

The product of its digits is 1458, while the sum is 31.

The square root of 91116193 is about 9545.4802393594. The cubic root of 91116193 is about 449.9855024136.

The spelling of 91116193 in words is "ninety-one million, one hundred sixteen thousand, one hundred ninety-three".