143859 has 8 divisors (see below), whose sum is σ = 194560. Its totient is φ = 94536.

The previous prime is 143833. The next prime is 143873. The reversal of 143859 is 958341.

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

It is not a de Polignac number, because 143859 - 2⁵ = 143827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143879) 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, 67 + ... + 540.

It is an arithmetic number, because the mean of its divisors is an integer number (24320).

2¹⁴³⁸⁵⁹ is an apocalyptic number.

143859 is a deficient number, since it is larger than the sum of its proper divisors (50701).

143859 is an equidigital number, since it uses as much as digits as its factorization.

143859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689.

The product of its digits is 4320, while the sum is 30.

The square root of 143859 is about 379.2874899071. The cubic root of 143859 is about 52.3977146800.

The spelling of 143859 in words is "one hundred forty-three thousand, eight hundred fifty-nine".