2011611 has 8 divisors (see below), whose sum is σ = 3065344. Its totient is φ = 1149480.

The previous prime is 2011601. The next prime is 2011613. The reversal of 2011611 is 1161102.

It is a happy number.

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

It is not a de Polignac number, because 2011611 - 2⁷ = 2011483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47875 + ... + 47916.

It is an arithmetic number, because the mean of its divisors is an integer number (383168).

2^2011611 is an apocalyptic number.

2011611 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2011611 is a deficient number, since it is larger than the sum of its proper divisors (1053733).

2011611 is an equidigital number, since it uses as much as digits as its factorization.

2011611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95801.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 2011611 is about 1418.3127299718. The cubic root of 2011611 is about 126.2354504032.

Adding to 2011611 its reverse (1161102), we get a palindrome (3172713).

The spelling of 2011611 in words is "two million, eleven thousand, six hundred eleven".