91122 has 8 divisors (see below), whose sum is σ = 182256. Its totient is φ = 30372.

The previous prime is 91121. The next prime is 91127. The reversal of 91122 is 22119.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

91122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (91121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7588 + ... + 7599.

It is an arithmetic number, because the mean of its divisors is an integer number (22782).

2⁹¹¹²² is an apocalyptic number.

91122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91128).

91122 is a wasteful number, since it uses less digits than its factorization.

91122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15192.

The product of its digits is 36, while the sum is 15.

The square root of 91122 is about 301.8642078816. The cubic root of 91122 is about 44.9995061674. Note that the first 3 decimals are identical.

The spelling of 91122 in words is "ninety-one thousand, one hundred twenty-two".