143838139 has 8 divisors (see below), whose sum is σ = 155841840. Its totient is φ = 132228096.

The previous prime is 143838137. The next prime is 143838143. The reversal of 143838139 is 931838341.

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

It is not a de Polignac number, because 143838139 - 2¹ = 143838137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143838133) 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, 97654 + ... + 99115.

It is an arithmetic number, because the mean of its divisors is an integer number (19480230).

Almost surely, 2^143838139 is an apocalyptic number.

143838139 is a deficient number, since it is larger than the sum of its proper divisors (12003701).

143838139 is a wasteful number, since it uses less digits than its factorization.

143838139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196829.

The product of its digits is 62208, while the sum is 40.

The square root of 143838139 is about 11993.2538954197. The cubic root of 143838139 is about 523.9518182589.

It can be divided in two parts, 14383 and 8139, that added together give a palindrome (22522).

The spelling of 143838139 in words is "one hundred forty-three million, eight hundred thirty-eight thousand, one hundred thirty-nine".