2144245 has 8 divisors (see below), whose sum is σ = 2708640. Its totient is φ = 1625040.

The previous prime is 2144243. The next prime is 2144249. The reversal of 2144245 is 5424412.

It is a happy number.

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

It is not a de Polignac number, because 2144245 - 2¹ = 2144243 is a prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11191 + ... + 11380.

It is an arithmetic number, because the mean of its divisors is an integer number (338580).

2^2144245 is an apocalyptic number.

It is an amenable number.

2144245 is a deficient number, since it is larger than the sum of its proper divisors (564395).

2144245 is a wasteful number, since it uses less digits than its factorization.

2144245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22595.

The product of its digits is 1280, while the sum is 22.

The square root of 2144245 is about 1464.3240761525. The cubic root of 2144245 is about 128.9510260184.

Adding to 2144245 its reverse (5424412), we get a palindrome (7568657).

The spelling of 2144245 in words is "two million, one hundred forty-four thousand, two hundred forty-five".