91082043 has 24 divisors (see below), whose sum is σ = 146121840. Its totient is φ = 56047680.

The previous prime is 91082021. The next prime is 91082051. The reversal of 91082043 is 34028019.

It is not a de Polignac number, because 91082043 - 2¹² = 91077947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 91081998 and 91082016.

It is not an unprimeable number, because it can be changed into a prime (91082003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5418 + ... + 14543.

It is an arithmetic number, because the mean of its divisors is an integer number (6088410).

Almost surely, 2^91082043 is an apocalyptic number.

91082043 is a deficient number, since it is larger than the sum of its proper divisors (55039797).

91082043 is a wasteful number, since it uses less digits than its factorization.

91082043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19996 (or 19977 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 91082043 is about 9543.6912670098. The cubic root of 91082043 is about 449.9292777747.

The spelling of 91082043 in words is "ninety-one million, eighty-two thousand, forty-three".