143243439 has 16 divisors (see below), whose sum is σ = 193440000. Its totient is φ = 94277376.

The previous prime is 143243389. The next prime is 143243459. The reversal of 143243439 is 934342341.

143243439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143243439 - 2⁸ = 143243183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143243459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153727 + ... + 154655.

It is an arithmetic number, because the mean of its divisors is an integer number (12090000).

Almost surely, 2^143243439 is an apocalyptic number.

143243439 is a deficient number, since it is larger than the sum of its proper divisors (50196561).

143243439 is a wasteful number, since it uses less digits than its factorization.

143243439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534.

The product of its digits is 31104, while the sum is 33.

The square root of 143243439 is about 11968.4351107403. The cubic root of 143243439 is about 523.2287263929.

The spelling of 143243439 in words is "one hundred forty-three million, two hundred forty-three thousand, four hundred thirty-nine".