2161162 has 8 divisors (see below), whose sum is σ = 3251556. Its totient is φ = 1077312.

The previous prime is 2161157. The next prime is 2161163. The reversal of 2161162 is 2611612.

It can be written as a sum of positive squares in 2 ways, for example, as 2076481 + 84681 = 1441^2 + 291^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2161163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703 + ... + 2194.

2^2161162 is an apocalyptic number.

2161162 is a deficient number, since it is larger than the sum of its proper divisors (1090394).

2161162 is a wasteful number, since it uses less digits than its factorization.

2161162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272.

The product of its digits is 144, while the sum is 19.

The square root of 2161162 is about 1470.0891129452. The cubic root of 2161162 is about 129.2892573679.

Adding to 2161162 its reverse (2611612), we get a palindrome (4772774).

It can be divided in two parts, 216 and 1162, that added together give a triangular number (1378 = T₅₂).

The spelling of 2161162 in words is "two million, one hundred sixty-one thousand, one hundred sixty-two".