91180094 has 16 divisors (see below), whose sum is σ = 140486400. Its totient is φ = 44362584.

The previous prime is 91180093. The next prime is 91180151. The reversal of 91180094 is 49008119.

It is a self number, because there is not a number n which added to its sum of digits gives 91180094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91180091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14117 + ... + 19535.

It is an arithmetic number, because the mean of its divisors is an integer number (8780400).

Almost surely, 2^91180094 is an apocalyptic number.

91180094 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

91180094 is a deficient number, since it is larger than the sum of its proper divisors (49306306).

91180094 is a wasteful number, since it uses less digits than its factorization.

91180094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5647.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 91180094 is about 9548.8268389368. The cubic root of 91180094 is about 450.0906714411.

The spelling of 91180094 in words is "ninety-one million, one hundred eighty thousand, ninety-four".