2144687 has 2 divisors, whose sum is σ = 2144688. Its totient is φ = 2144686.

The previous prime is 2144683. The next prime is 2144689. The reversal of 2144687 is 7864412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2144687 - 2² = 2144683 is a prime.

Together with 2144689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072343 + 1072344.

It is an arithmetic number, because the mean of its divisors is an integer number (1072344).

2^2144687 is an apocalyptic number.

2144687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144687 is an equidigital number, since it uses as much as digits as its factorization.

2144687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 32.

The square root of 2144687 is about 1464.4749912511. The cubic root of 2144687 is about 128.9598857705.

The spelling of 2144687 in words is "two million, one hundred forty-four thousand, six hundred eighty-seven".