143216589 has 4 divisors (see below), whose sum is σ = 190955456. Its totient is φ = 95477724.

The previous prime is 143216581. The next prime is 143216597. The reversal of 143216589 is 985612341.

143216589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (143216581) and next prime (143216597).

It is not a de Polignac number, because 143216589 - 2³ = 143216581 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143216581) 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, 23869429 + ... + 23869434.

It is an arithmetic number, because the mean of its divisors is an integer number (47738864).

Almost surely, 2^143216589 is an apocalyptic number.

It is an amenable number.

143216589 is a deficient number, since it is larger than the sum of its proper divisors (47738867).

143216589 is an equidigital number, since it uses as much as digits as its factorization.

143216589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47738866.

The product of its digits is 51840, while the sum is 39.

The square root of 143216589 is about 11967.3133576421. The cubic root of 143216589 is about 523.1960324716.

It can be divided in two parts, 14321 and 6589, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 143216589 in words is "one hundred forty-three million, two hundred sixteen thousand, five hundred eighty-nine".