2016091 has 8 divisors (see below), whose sum is σ = 2513664. Its totient is φ = 1570920.

The previous prime is 2016059. The next prime is 2016101. The reversal of 2016091 is 1906102.

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

It is a cyclic number.

It is not a de Polignac number, because 2016091 - 2⁵ = 2016059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2016031) 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, 13015 + ... + 13168.

It is an arithmetic number, because the mean of its divisors is an integer number (314208).

2^2016091 is an apocalyptic number.

2016091 is a deficient number, since it is larger than the sum of its proper divisors (497573).

2016091 is a wasteful number, since it uses less digits than its factorization.

2016091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26201.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 2016091 is about 1419.8911930145. The cubic root of 2016091 is about 126.3290926809.

The spelling of 2016091 in words is "two million, sixteen thousand, ninety-one".