340143 has 4 divisors (see below), whose sum is σ = 453528. Its totient is φ = 226760.

The previous prime is 340129. The next prime is 340169. The reversal of 340143 is 341043.

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 340143 - 2⁴ = 340127 is a prime.

It is a D-number.

340143 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340143.

It is not an unprimeable number, because it can be changed into a prime (340103) 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, 56688 + ... + 56693.

It is an arithmetic number, because the mean of its divisors is an integer number (113382).

2³⁴⁰¹⁴³ is an apocalyptic number.

340143 is a deficient number, since it is larger than the sum of its proper divisors (113385).

340143 is a wasteful number, since it uses less digits than its factorization.

340143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113384.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 340143 is about 583.2177980823. The cubic root of 340143 is about 69.8051041278.

Adding to 340143 its reverse (341043), we get a palindrome (681186).

Subtracting 340143 from its reverse (341043), we obtain a square (900 = 30²).

The spelling of 340143 in words is "three hundred forty thousand, one hundred forty-three", and thus it is an iban number.