2144445 has 8 divisors (see below), whose sum is σ = 3431136. Its totient is φ = 1143696.

The previous prime is 2144437. The next prime is 2144449. The reversal of 2144445 is 5444412.

It is a happy number.

2144445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2144445 - 2³ = 2144437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71467 + ... + 71496.

It is an arithmetic number, because the mean of its divisors is an integer number (428892).

2^2144445 is an apocalyptic number.

It is an amenable number.

2144445 is a deficient number, since it is larger than the sum of its proper divisors (1286691).

2144445 is a wasteful number, since it uses less digits than its factorization.

2144445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142971.

The product of its digits is 2560, while the sum is 24.

The square root of 2144445 is about 1464.3923654540. The cubic root of 2144445 is about 128.9550351068.

Adding to 2144445 its reverse (5444412), we get a palindrome (7588857).

The spelling of 2144445 in words is "two million, one hundred forty-four thousand, four hundred forty-five".