91110112 has 24 divisors (see below), whose sum is σ = 185560200. Its totient is φ = 43983744.

The previous prime is 91110109. The next prime is 91110121. The reversal of 91110112 is 21101119.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 48162 + ... + 50017.

It is an arithmetic number, because the mean of its divisors is an integer number (7731675).

Almost surely, 2^91110112 is an apocalyptic number.

It is an amenable number.

91110112 is an abundant number, since it is smaller than the sum of its proper divisors (94450088).

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

91110112 is a wasteful number, since it uses less digits than its factorization.

91110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98218 (or 98210 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 16.

The square root of 91110112 is about 9545.1617063306. The cubic root of 91110112 is about 449.9754916693.

The spelling of 91110112 in words is "ninety-one million, one hundred ten thousand, one hundred twelve".