91055108 has 12 divisors (see below), whose sum is σ = 159415872. Its totient is φ = 45507720.

The previous prime is 91055101. The next prime is 91055119. The reversal of 91055108 is 80155019.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (91055101) 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, 11273 + ... + 17583.

It is an arithmetic number, because the mean of its divisors is an integer number (13284656).

Almost surely, 2^91055108 is an apocalyptic number.

It is an amenable number.

91055108 is a deficient number, since it is larger than the sum of its proper divisors (68360764).

91055108 is a wasteful number, since it uses less digits than its factorization.

91055108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9922 (or 9920 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 91055108 is about 9542.2800210432. The cubic root of 91055108 is about 449.8849220141.

The spelling of 91055108 in words is "ninety-one million, fifty-five thousand, one hundred eight".