2161596 has 24 divisors (see below), whose sum is σ = 5128144. Its totient is φ = 708480.

The previous prime is 2161591. The next prime is 2161613. The reversal of 2161596 is 6951612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161591) 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, 745 + ... + 2208.

2^2161596 is an apocalyptic number.

It is an amenable number.

2161596 is an abundant number, since it is smaller than the sum of its proper divisors (2966548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2161596 is a wasteful number, since it uses less digits than its factorization.

2161596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3021 (or 3019 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 2161596 is about 1470.2367156346. The cubic root of 2161596 is about 129.2979113207.

The spelling of 2161596 in words is "two million, one hundred sixty-one thousand, five hundred ninety-six".