2071121 has 8 divisors (see below), whose sum is σ = 2241960. Its totient is φ = 1901952.

The previous prime is 2071087. The next prime is 2071123. The reversal of 2071121 is 1211702.

It can be written as a sum of positive squares in 4 ways, for example, as 400 + 2070721 = 20^2 + 1439^2 .

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

It is not a de Polignac number, because 2071121 - 2¹⁸ = 1808977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2071096 and 2071105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071123) 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, 3815 + ... + 4323.

It is an arithmetic number, because the mean of its divisors is an integer number (280245).

2^2071121 is an apocalyptic number.

It is an amenable number.

2071121 is a deficient number, since it is larger than the sum of its proper divisors (170839).

2071121 is a wasteful number, since it uses less digits than its factorization.

2071121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 2071121 is about 1439.1389786952. The cubic root of 2071121 is about 127.4681914756.

Adding to 2071121 its reverse (1211702), we get a palindrome (3282823).

The spelling of 2071121 in words is "two million, seventy-one thousand, one hundred twenty-one".