91150845 has 16 divisors (see below), whose sum is σ = 146091840. Its totient is φ = 48530304.

The previous prime is 91150789. The next prime is 91150859. The reversal of 91150845 is 54805119.

It is not a de Polignac number, because 91150845 - 2¹⁸ = 90888701 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4377 + ... + 14193.

It is an arithmetic number, because the mean of its divisors is an integer number (9130740).

Almost surely, 2^91150845 is an apocalyptic number.

It is an amenable number.

91150845 is a deficient number, since it is larger than the sum of its proper divisors (54940995).

91150845 is a wasteful number, since it uses less digits than its factorization.

91150845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10444.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 91150845 is about 9547.2951666951. The cubic root of 91150845 is about 450.0425391885.

The spelling of 91150845 in words is "ninety-one million, one hundred fifty thousand, eight hundred forty-five".