2240143 has 4 divisors (see below), whose sum is σ = 2251600. Its totient is φ = 2228688.

The previous prime is 2240137. The next prime is 2240159. The reversal of 2240143 is 3410422.

2240143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3410422 = 2 ⋅1705211.

It is a cyclic number.

It is not a de Polignac number, because 2240143 - 2⁵ = 2240111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240113) 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 3 ways as a sum of consecutive naturals, for example, 5430 + ... + 5827.

It is an arithmetic number, because the mean of its divisors is an integer number (562900).

2^2240143 is an apocalyptic number.

2240143 is a deficient number, since it is larger than the sum of its proper divisors (11457).

2240143 is a wasteful number, since it uses less digits than its factorization.

2240143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11456.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2240143 is about 1496.7107268941. The cubic root of 2240143 is about 130.8454366488.

Adding to 2240143 its reverse (3410422), we get a palindrome (5650565).

The spelling of 2240143 in words is "two million, two hundred forty thousand, one hundred forty-three".