91102 has 16 divisors (see below), whose sum is σ = 154224. Its totient is φ = 40000.

The previous prime is 91099. The next prime is 91121. The reversal of 91102 is 20119.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 852 + ... + 952.

It is an arithmetic number, because the mean of its divisors is an integer number (9639).

2⁹¹¹⁰² is an apocalyptic number.

91102 is a deficient number, since it is larger than the sum of its proper divisors (63122).

91102 is a wasteful number, since it uses less digits than its factorization.

91102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 91102 is about 301.8310785854. The cubic root of 91102 is about 44.9962136732.

It can be divided in two parts, 9 and 1102, that added together give a palindrome (1111).

The spelling of 91102 in words is "ninety-one thousand, one hundred two".