91092102 has 32 divisors (see below), whose sum is σ = 185186304. Its totient is φ = 29868000.

The previous prime is 91092091. The next prime is 91092139. The reversal of 91092102 is 20129019.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115353 + ... + 116139.

It is an arithmetic number, because the mean of its divisors is an integer number (5787072).

Almost surely, 2^91092102 is an apocalyptic number.

91092102 is an abundant number, since it is smaller than the sum of its proper divisors (94094202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91092102 is a wasteful number, since it uses less digits than its factorization.

91092102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 91092102 is about 9544.2182498097. The cubic root of 91092102 is about 449.9458403955.

It can be divided in two parts, 9109 and 2102, that added together give a palindrome (11211).

The spelling of 91092102 in words is "ninety-one million, ninety-two thousand, one hundred two".