2303143 has 4 divisors (see below), whose sum is σ = 2438640. Its totient is φ = 2167648.

The previous prime is 2303137. The next prime is 2303153. The reversal of 2303143 is 3413032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2303143 - 2⁹ = 2302631 is a prime.

It is a Duffinian number.

2303143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67723 + ... + 67756.

It is an arithmetic number, because the mean of its divisors is an integer number (609660).

2^2303143 is an apocalyptic number.

2303143 is a deficient number, since it is larger than the sum of its proper divisors (135497).

2303143 is a wasteful number, since it uses less digits than its factorization.

2303143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135496.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2303143 is about 1517.6109514629. The cubic root of 2303143 is about 132.0607120473.

Adding to 2303143 its reverse (3413032), we get a palindrome (5716175).

The spelling of 2303143 in words is "two million, three hundred three thousand, one hundred forty-three".