8340143 has 6 divisors (see below), whose sum is σ = 9701856. Its totient is φ = 7148652.

The previous prime is 8340131. The next prime is 8340161. The reversal of 8340143 is 3410438.

8340143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8340143 - 2⁴ = 8340127 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 (8340173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85055 + ... + 85152.

It is an arithmetic number, because the mean of its divisors is an integer number (1616976).

Almost surely, 2^8340143 is an apocalyptic number.

8340143 is a deficient number, since it is larger than the sum of its proper divisors (1361713).

8340143 is a wasteful number, since it uses less digits than its factorization.

8340143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170221 (or 170214 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 8340143 is about 2887.9305739578. The cubic root of 8340143 is about 202.7952751747.

The spelling of 8340143 in words is "eight million, three hundred forty thousand, one hundred forty-three".