2144145 has 16 divisors (see below), whose sum is σ = 3451392. Its totient is φ = 1136640.

The previous prime is 2144143. The next prime is 2144161. The reversal of 2144145 is 5414412.

It is a happy number.

It is not a de Polignac number, because 2144145 - 2¹ = 2144143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2144143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3025 + ... + 3665.

It is an arithmetic number, because the mean of its divisors is an integer number (215712).

2^2144145 is an apocalyptic number.

It is an amenable number.

2144145 is a deficient number, since it is larger than the sum of its proper divisors (1307247).

2144145 is a wasteful number, since it uses less digits than its factorization.

2144145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its digits is 640, while the sum is 21.

The square root of 2144145 is about 1464.2899303075. The cubic root of 2144145 is about 128.9490213807.

Adding to 2144145 its reverse (5414412), we get a palindrome (7558557).

The spelling of 2144145 in words is "two million, one hundred forty-four thousand, one hundred forty-five".