2144045 has 4 divisors (see below), whose sum is σ = 2572860. Its totient is φ = 1715232.

The previous prime is 2144041. The next prime is 2144047. The reversal of 2144045 is 5404412.

2144045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 538756 + 1605289 = 734^2 + 1267^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144045 - 2² = 2144041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144041) 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 3 ways as a sum of consecutive naturals, for example, 214400 + ... + 214409.

It is an arithmetic number, because the mean of its divisors is an integer number (643215).

2^2144045 is an apocalyptic number.

It is an amenable number.

2144045 is a deficient number, since it is larger than the sum of its proper divisors (428815).

2144045 is an equidigital number, since it uses as much as digits as its factorization.

2144045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428814.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2144045 is about 1464.2557836662. The cubic root of 2144045 is about 128.9470166807.

Adding to 2144045 its reverse (5404412), we get a palindrome (7548457).

The spelling of 2144045 in words is "two million, one hundred forty-four thousand, forty-five".