91245112 has 16 divisors (see below), whose sum is σ = 195525360. Its totient is φ = 39105024.

The previous prime is 91245083. The next prime is 91245113. The reversal of 91245112 is 21154219.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91245113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814633 + ... + 814744.

It is an arithmetic number, because the mean of its divisors is an integer number (12220335).

Almost surely, 2^91245112 is an apocalyptic number.

It is an amenable number.

91245112 is an abundant number, since it is smaller than the sum of its proper divisors (104280248).

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

91245112 is a wasteful number, since it uses less digits than its factorization.

91245112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629390 (or 1629386 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

The square root of 91245112 is about 9552.2307342317. The cubic root of 91245112 is about 450.1976284203.

The spelling of 91245112 in words is "ninety-one million, two hundred forty-five thousand, one hundred twelve".