2144255 has 4 divisors (see below), whose sum is σ = 2573112. Its totient is φ = 1715400.

The previous prime is 2144251. The next prime is 2144269. The reversal of 2144255 is 5524412.

It is a happy number.

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

It is not a de Polignac number, because 2144255 - 2² = 2144251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2144255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144251) 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, 214421 + ... + 214430.

It is an arithmetic number, because the mean of its divisors is an integer number (643278).

2^2144255 is an apocalyptic number.

2144255 is a deficient number, since it is larger than the sum of its proper divisors (428857).

2144255 is an equidigital number, since it uses as much as digits as its factorization.

2144255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428856.

The product of its digits is 1600, while the sum is 23.

The square root of 2144255 is about 1464.3274906933. The cubic root of 2144255 is about 128.9512264787.

Adding to 2144255 its reverse (5524412), we get a palindrome (7668667).

The spelling of 2144255 in words is "two million, one hundred forty-four thousand, two hundred fifty-five".