91233745 has 8 divisors (see below), whose sum is σ = 112026816. Its totient is φ = 71289456.

The previous prime is 91233707. The next prime is 91233757. The reversal of 91233745 is 54733219.

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

It is a cyclic number.

It is not a de Polignac number, because 91233745 - 2¹⁷ = 91102673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91233745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211957 + ... + 212386.

It is an arithmetic number, because the mean of its divisors is an integer number (14003352).

Almost surely, 2^91233745 is an apocalyptic number.

It is an amenable number.

91233745 is a deficient number, since it is larger than the sum of its proper divisors (20793071).

91233745 is a wasteful number, since it uses less digits than its factorization.

91233745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424391.

The product of its digits is 22680, while the sum is 34.

The square root of 91233745 is about 9551.6357237910. The cubic root of 91233745 is about 450.1789329569.

The spelling of 91233745 in words is "ninety-one million, two hundred thirty-three thousand, seven hundred forty-five".