2011659 has 8 divisors (see below), whose sum is σ = 2888592. Its totient is φ = 1237920.

The previous prime is 2011657. The next prime is 2011673. The reversal of 2011659 is 9561102.

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

It is not a de Polignac number, because 2011659 - 2¹ = 2011657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25752 + ... + 25829.

It is an arithmetic number, because the mean of its divisors is an integer number (361074).

2^2011659 is an apocalyptic number.

2011659 is a deficient number, since it is larger than the sum of its proper divisors (876933).

2011659 is a wasteful number, since it uses less digits than its factorization.

2011659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51597.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 2011659 is about 1418.3296513857. The cubic root of 2011659 is about 126.2364544497.

The spelling of 2011659 in words is "two million, eleven thousand, six hundred fifty-nine".