143489 has 2 divisors, whose sum is σ = 143490. Its totient is φ = 143488.

The previous prime is 143483. The next prime is 143501. The reversal of 143489 is 984341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115600 + 27889 = 340^2 + 167^2 .

It is an emirp because it is prime and its reverse (984341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143489 - 2¹² = 139393 is a prime.

It is not a weakly prime, because it can be changed into another prime (143483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71744 + 71745.

It is an arithmetic number, because the mean of its divisors is an integer number (71745).

2¹⁴³⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

143489 is a deficient number, since it is larger than the sum of its proper divisors (1).

143489 is an equidigital number, since it uses as much as digits as its factorization.

143489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 143489 is about 378.7994192181. The cubic root of 143489 is about 52.3527544545.

The spelling of 143489 in words is "one hundred forty-three thousand, four hundred eighty-nine".