2163089 has 4 divisors (see below), whose sum is σ = 2203956. Its totient is φ = 2122224.

The previous prime is 2163079. The next prime is 2163101. The reversal of 2163089 is 9803612.

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 1982464 + 180625 = 1408^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 2163089 - 2¹² = 2158993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163059) 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, 20354 + ... + 20459.

It is an arithmetic number, because the mean of its divisors is an integer number (550989).

2^2163089 is an apocalyptic number.

It is an amenable number.

2163089 is a deficient number, since it is larger than the sum of its proper divisors (40867).

2163089 is an equidigital number, since it uses as much as digits as its factorization.

2163089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40866.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2163089 is about 1470.7443693586. The cubic root of 2163089 is about 129.3276728726.

The spelling of 2163089 in words is "two million, one hundred sixty-three thousand, eighty-nine".