2144505 has 32 divisors (see below), whose sum is σ = 3846528. Its totient is φ = 1011200.

The previous prime is 2144503. The next prime is 2144507. The reversal of 2144505 is 5054412.

2144505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2144503) and next prime (2144507).

It is not a de Polignac number, because 2144505 - 2¹ = 2144503 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144501) 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 31 ways as a sum of consecutive naturals, for example, 6607 + ... + 6923.

It is an arithmetic number, because the mean of its divisors is an integer number (120204).

2^2144505 is an apocalyptic number.

It is an amenable number.

2144505 is a deficient number, since it is larger than the sum of its proper divisors (1702023).

2144505 is a wasteful number, since it uses less digits than its factorization.

2144505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2144505 is about 1464.4128516235. The cubic root of 2144505 is about 128.9562377847.

Adding to 2144505 its reverse (5054412), we get a palindrome (7198917).

The spelling of 2144505 in words is "two million, one hundred forty-four thousand, five hundred five".