143885 has 8 divisors (see below), whose sum is σ = 197376. Its totient is φ = 98640.

The previous prime is 143881. The next prime is 143909. The reversal of 143885 is 588341.

143885 = 218² + 219² + 220².

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

It is not a de Polignac number, because 143885 - 2² = 143881 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 (143881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2021 + ... + 2090.

It is an arithmetic number, because the mean of its divisors is an integer number (24672).

2¹⁴³⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

143885 is a deficient number, since it is larger than the sum of its proper divisors (53491).

143885 is an equidigital number, since it uses as much as digits as its factorization.

143885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123.

The product of its digits is 3840, while the sum is 29.

The square root of 143885 is about 379.3217631510. The cubic root of 143885 is about 52.4008711469.

The spelling of 143885 in words is "one hundred forty-three thousand, eight hundred eighty-five".