143189 has 6 divisors (see below), whose sum is σ = 148950. Its totient is φ = 137640.

The previous prime is 143177. The next prime is 143197. The reversal of 143189 is 981341.

It can be written as a sum of positive squares in only one way, i.e., 96100 + 47089 = 310^2 + 217^2 .

It is a de Polignac number, because none of the positive numbers 2^k-143189 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 887 + ... + 1035.

It is an arithmetic number, because the mean of its divisors is an integer number (24825).

2¹⁴³¹⁸⁹ is an apocalyptic number.

It is an amenable number.

143189 is a deficient number, since it is larger than the sum of its proper divisors (5761).

143189 is an equidigital number, since it uses as much as digits as its factorization.

143189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 180 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 143189 is about 378.4032240877. The cubic root of 143189 is about 52.3162434450.

The spelling of 143189 in words is "one hundred forty-three thousand, one hundred eighty-nine".