91120236 has 12 divisors (see below), whose sum is σ = 212613912. Its totient is φ = 30373408.

The previous prime is 91120217. The next prime is 91120241. The reversal of 91120236 is 63202119.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3796665 + ... + 3796688.

It is an arithmetic number, because the mean of its divisors is an integer number (17717826).

Almost surely, 2^91120236 is an apocalyptic number.

It is an amenable number.

91120236 is an abundant number, since it is smaller than the sum of its proper divisors (121493676).

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

91120236 is a wasteful number, since it uses less digits than its factorization.

91120236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7593360 (or 7593358 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 91120236 is about 9545.6920126306. The cubic root of 91120236 is about 449.9921578880.

The spelling of 91120236 in words is "ninety-one million, one hundred twenty thousand, two hundred thirty-six".