91116122 has 4 divisors (see below), whose sum is σ = 136674186. Its totient is φ = 45558060.

The previous prime is 91116079. The next prime is 91116131. The reversal of 91116122 is 22161119.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 85729081 + 5387041 = 9259^2 + 2321^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22779029 + ... + 22779032.

Almost surely, 2^91116122 is an apocalyptic number.

91116122 is a deficient number, since it is larger than the sum of its proper divisors (45558064).

91116122 is a wasteful number, since it uses less digits than its factorization.

91116122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45558063.

The product of its digits is 216, while the sum is 23.

The square root of 91116122 is about 9545.4765203210. The cubic root of 91116122 is about 449.9853855336.

The spelling of 91116122 in words is "ninety-one million, one hundred sixteen thousand, one hundred twenty-two".