2144287 has 2 divisors, whose sum is σ = 2144288. Its totient is φ = 2144286.

The previous prime is 2144279. The next prime is 2144309. The reversal of 2144287 is 7824412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2144287 - 2³ = 2144279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072143 + 1072144.

It is an arithmetic number, because the mean of its divisors is an integer number (1072144).

2^2144287 is an apocalyptic number.

2144287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144287 is an equidigital number, since it uses as much as digits as its factorization.

2144287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 28.

The square root of 2144287 is about 1464.3384171700. The cubic root of 2144287 is about 128.9518679477.

Adding to 2144287 its reverse (7824412), we get a palindrome (9968699).

The spelling of 2144287 in words is "two million, one hundred forty-four thousand, two hundred eighty-seven".