143423439 has 8 divisors (see below), whose sum is σ = 191676672. Its totient is φ = 95392920.

The previous prime is 143423437. The next prime is 143423443. The reversal of 143423439 is 934324341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143423439 - 2¹ = 143423437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143423431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54169 + ... + 56754.

It is an arithmetic number, because the mean of its divisors is an integer number (23959584).

Almost surely, 2^143423439 is an apocalyptic number.

143423439 is a deficient number, since it is larger than the sum of its proper divisors (48253233).

143423439 is a wasteful number, since it uses less digits than its factorization.

143423439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111357.

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

The square root of 143423439 is about 11975.9525299660. The cubic root of 143423439 is about 523.4477980877.

The spelling of 143423439 in words is "one hundred forty-three million, four hundred twenty-three thousand, four hundred thirty-nine".