91204122 has 16 divisors (see below), whose sum is σ = 183193920. Its totient is φ = 30270432.

The previous prime is 91204121. The next prime is 91204129. The reversal of 91204122 is 22140219.

It is not an unprimeable number, because it can be changed into a prime (91204121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31222 + ... + 34017.

It is an arithmetic number, because the mean of its divisors is an integer number (11449620).

Almost surely, 2^91204122 is an apocalyptic number.

91204122 is an abundant number, since it is smaller than the sum of its proper divisors (91989798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91204122 is a wasteful number, since it uses less digits than its factorization.

91204122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65477.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 91204122 is about 9550.0849210884. The cubic root of 91204122 is about 450.1302042980.

The spelling of 91204122 in words is "ninety-one million, two hundred four thousand, one hundred twenty-two".