2144187 has 24 divisors (see below), whose sum is σ = 3272256. Its totient is φ = 1351296.

The previous prime is 2144183. The next prime is 2144189. The reversal of 2144187 is 7814412.

It is not a de Polignac number, because 2144187 - 2² = 2144183 is a prime.

Its product of digits (1792) is a multiple of the sum of its prime divisors (224).

It is a self number, because there is not a number n which added to its sum of digits gives 2144187.

It is not an unprimeable number, because it can be changed into a prime (2144183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15583 + ... + 15719.

It is an arithmetic number, because the mean of its divisors is an integer number (136344).

2^2144187 is an apocalyptic number.

2144187 is a deficient number, since it is larger than the sum of its proper divisors (1128069).

2144187 is a wasteful number, since it uses less digits than its factorization.

2144187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 224 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 2144187 is about 1464.3042716594. The cubic root of 2144187 is about 128.9498633361.

Adding to 2144187 its reverse (7814412), we get a palindrome (9958599).

It can be divided in two parts, 21441 and 87, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 2144187 in words is "two million, one hundred forty-four thousand, one hundred eighty-seven".