439143 has 4 divisors (see below), whose sum is σ = 585528. Its totient is φ = 292760.

The previous prime is 439141. The next prime is 439157. The reversal of 439143 is 341934.

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 439143 - 2¹ = 439141 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439141) 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, 73188 + ... + 73193.

It is an arithmetic number, because the mean of its divisors is an integer number (146382).

2⁴³⁹¹⁴³ is an apocalyptic number.

439143 is a deficient number, since it is larger than the sum of its proper divisors (146385).

439143 is a wasteful number, since it uses less digits than its factorization.

439143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146384.

The product of its digits is 1296, while the sum is 24.

The square root of 439143 is about 662.6786551565. The cubic root of 439143 is about 76.0096363589.

The spelling of 439143 in words is "four hundred thirty-nine thousand, one hundred forty-three".