443139 has 8 divisors (see below), whose sum is σ = 625680. Its totient is φ = 278016.

The previous prime is 443129. The next prime is 443147. The reversal of 443139 is 931344.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 443139 - 2⁴ = 443123 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 443139.

It is not an unprimeable number, because it can be changed into a prime (443129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4294 + ... + 4395.

It is an arithmetic number, because the mean of its divisors is an integer number (78210).

2⁴⁴³¹³⁹ is an apocalyptic number.

443139 is a deficient number, since it is larger than the sum of its proper divisors (182541).

443139 is a wasteful number, since it uses less digits than its factorization.

443139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8709.

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

The square root of 443139 is about 665.6868633224. The cubic root of 443139 is about 76.2394915197.

The spelling of 443139 in words is "four hundred forty-three thousand, one hundred thirty-nine".