2071161 has 12 divisors (see below), whose sum is σ = 3167892. Its totient is φ = 1299456.

The previous prime is 2071159. The next prime is 2071169. The reversal of 2071161 is 1611702.

It can be written as a sum of positive squares in 2 ways, for example, as 1863225 + 207936 = 1365^2 + 456^2 .

It is not a de Polignac number, because 2071161 - 2¹ = 2071159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2071169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6616 + ... + 6921.

It is an arithmetic number, because the mean of its divisors is an integer number (263991).

2^2071161 is an apocalyptic number.

It is an amenable number.

2071161 is a deficient number, since it is larger than the sum of its proper divisors (1096731).

2071161 is a wasteful number, since it uses less digits than its factorization.

2071161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13560 (or 13557 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 2071161 is about 1439.1528758266. The cubic root of 2071161 is about 127.4690120771.

Adding to 2071161 its reverse (1611702), we get a palindrome (3682863).

The spelling of 2071161 in words is "two million, seventy-one thousand, one hundred sixty-one".