19082091 has 8 divisors (see below), whose sum is σ = 29077504. Its totient is φ = 10904040.

The previous prime is 19082057. The next prime is 19082093. The reversal of 19082091 is 19028091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19082091 - 2⁷ = 19081963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19082093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454315 + ... + 454356.

It is an arithmetic number, because the mean of its divisors is an integer number (3634688).

Almost surely, 2^19082091 is an apocalyptic number.

19082091 is a deficient number, since it is larger than the sum of its proper divisors (9995413).

19082091 is an equidigital number, since it uses as much as digits as its factorization.

19082091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908681.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 19082091 is about 4368.3052777937. The cubic root of 19082091 is about 267.2239140617.

The spelling of 19082091 in words is "nineteen million, eighty-two thousand, ninety-one".