2182289 has 4 divisors (see below), whose sum is σ = 2202420. Its totient is φ = 2162160.

The previous prime is 2182259. The next prime is 2182303. The reversal of 2182289 is 9822812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 693889 + 1488400 = 833^2 + 1220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2182289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2182249) 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, 9902 + ... + 10119.

It is an arithmetic number, because the mean of its divisors is an integer number (550605).

2^2182289 is an apocalyptic number.

It is an amenable number.

2182289 is a deficient number, since it is larger than the sum of its proper divisors (20131).

2182289 is a wasteful number, since it uses less digits than its factorization.

2182289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20130.

The product of its digits is 4608, while the sum is 32.

The square root of 2182289 is about 1477.2572558630. The cubic root of 2182289 is about 129.7091921619.

The spelling of 2182289 in words is "two million, one hundred eighty-two thousand, two hundred eighty-nine".