2081611 has 8 divisors (see below), whose sum is σ = 2437344. Its totient is φ = 1740480.

The previous prime is 2081609. The next prime is 2081617. The reversal of 2081611 is 1161802.

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

It is not a de Polignac number, because 2081611 - 2¹ = 2081609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2081617) 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, 3340 + ... + 3913.

It is an arithmetic number, because the mean of its divisors is an integer number (304668).

2^2081611 is an apocalyptic number.

2081611 is a deficient number, since it is larger than the sum of its proper divisors (355733).

2081611 is an equidigital number, since it uses as much as digits as its factorization.

2081611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7301.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 2081611 is about 1442.7789158426. The cubic root of 2081611 is about 127.6830332880.

The spelling of 2081611 in words is "two million, eighty-one thousand, six hundred eleven".