2111009 has 8 divisors (see below), whose sum is σ = 2332800. Its totient is φ = 1900096.

The previous prime is 2110981. The next prime is 2111023. The reversal of 2111009 is 9001112.

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 2111009 - 2⁸ = 2110753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110984 and 2111002.

It is not an unprimeable number, because it can be changed into a prime (2111029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309 + ... + 3090.

It is an arithmetic number, because the mean of its divisors is an integer number (291600).

2^2111009 is an apocalyptic number.

It is an amenable number.

2111009 is a deficient number, since it is larger than the sum of its proper divisors (221791).

2111009 is a wasteful number, since it uses less digits than its factorization.

2111009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5439.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 2111009 is about 1452.9311752454. The cubic root of 2111009 is about 128.2813027212.

The spelling of 2111009 in words is "two million, one hundred eleven thousand, nine".