2164255 has 8 divisors (see below), whose sum is σ = 2646432. Its totient is φ = 1698528.

The previous prime is 2164247. The next prime is 2164273. The reversal of 2164255 is 5524612.

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 2164255 - 2³ = 2164247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3819 + ... + 4348.

It is an arithmetic number, because the mean of its divisors is an integer number (330804).

2^2164255 is an apocalyptic number.

2164255 is a deficient number, since it is larger than the sum of its proper divisors (482177).

2164255 is an equidigital number, since it uses as much as digits as its factorization.

2164255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8225.

The product of its digits is 2400, while the sum is 25.

The square root of 2164255 is about 1471.1407138680. The cubic root of 2164255 is about 129.3509064642.

Adding to 2164255 its reverse (5524612), we get a palindrome (7688867).

The spelling of 2164255 in words is "two million, one hundred sixty-four thousand, two hundred fifty-five".