2162605 has 8 divisors (see below), whose sum is σ = 2603232. Its totient is φ = 1724688.

The previous prime is 2162603. The next prime is 2162623. The reversal of 2162605 is 5062612.

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

It is a cyclic number.

It is not a de Polignac number, because 2162605 - 2¹ = 2162603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2202 + ... + 3028.

It is an arithmetic number, because the mean of its divisors is an integer number (325404).

2^2162605 is an apocalyptic number.

It is an amenable number.

2162605 is a deficient number, since it is larger than the sum of its proper divisors (440627).

2162605 is an equidigital number, since it uses as much as digits as its factorization.

2162605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2162605 is about 1470.5798176230. The cubic root of 2162605 is about 129.3180262880.

It can be divided in two parts, 21 and 62605, that added together give a palindrome (62626).

The spelling of 2162605 in words is "two million, one hundred sixty-two thousand, six hundred five".