2109071 has 8 divisors (see below), whose sum is σ = 2257920. Its totient is φ = 1963008.

The previous prime is 2109067. The next prime is 2109097. The reversal of 2109071 is 1709012.

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 2109071 - 2² = 2109067 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109011) 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, 1010 + ... + 2288.

It is an arithmetic number, because the mean of its divisors is an integer number (282240).

2^2109071 is an apocalyptic number.

2109071 is a deficient number, since it is larger than the sum of its proper divisors (148849).

2109071 is a wasteful number, since it uses less digits than its factorization.

2109071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 2109071 is about 1452.2640944401. The cubic root of 2109071 is about 128.2420347248.

The spelling of 2109071 in words is "two million, one hundred nine thousand, seventy-one".