2287143 has 32 divisors (see below), whose sum is σ = 3686400. Its totient is φ = 1397088.

The previous prime is 2287133. The next prime is 2287171. The reversal of 2287143 is 3417822.

2287143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2287143 - 2⁵ = 2287111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287133) 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, 17946 + ... + 18072.

It is an arithmetic number, because the mean of its divisors is an integer number (115200).

2^2287143 is an apocalyptic number.

2287143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2287143 is a deficient number, since it is larger than the sum of its proper divisors (1399257).

2287143 is a wasteful number, since it uses less digits than its factorization.

2287143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 182 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2287143 is about 1512.3303210608. The cubic root of 2287143 is about 131.7541913027.

The spelling of 2287143 in words is "two million, two hundred eighty-seven thousand, one hundred forty-three".