143071 has 4 divisors (see below), whose sum is σ = 144072. Its totient is φ = 142072.

The previous prime is 143063. The next prime is 143093. The reversal of 143071 is 170341.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 143071 - 2³ = 143063 is a prime.

It is a super-2 number, since 2×143071² = 40938622082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143971) 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, 241 + ... + 586.

It is an arithmetic number, because the mean of its divisors is an integer number (36018).

2¹⁴³⁰⁷¹ is an apocalyptic number.

143071 is a deficient number, since it is larger than the sum of its proper divisors (1001).

143071 is an equidigital number, since it uses as much as digits as its factorization.

143071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 143071 is about 378.2472736187. The cubic root of 143071 is about 52.3018684737.

The spelling of 143071 in words is "one hundred forty-three thousand, seventy-one", and thus it is an iban number.