2071156 has 24 divisors (see below), whose sum is σ = 3785544. Its totient is φ = 990720.

The previous prime is 2071123. The next prime is 2071159. The reversal of 2071156 is 6511702.

It can be written as a sum of positive squares in 4 ways, for example, as 291600 + 1779556 = 540^2 + 1334^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11886 + ... + 12058.

It is an arithmetic number, because the mean of its divisors is an integer number (157731).

2^2071156 is an apocalyptic number.

It is an amenable number.

2071156 is a deficient number, since it is larger than the sum of its proper divisors (1714388).

2071156 is a wasteful number, since it uses less digits than its factorization.

2071156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 2071156 is about 1439.1511386925. The cubic root of 2071156 is about 127.4689095025.

Adding to 2071156 its reverse (6511702), we get a palindrome (8582858).

The spelling of 2071156 in words is "two million, seventy-one thousand, one hundred fifty-six".