143839049 has 4 divisors (see below), whose sum is σ = 145263300. Its totient is φ = 142414800.

The previous prime is 143839027. The next prime is 143839093. The reversal of 143839049 is 940938341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141610000 + 2229049 = 11900^2 + 1493^2 .

It is a cyclic number.

It is not a de Polignac number, because 143839049 - 2¹² = 143834953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143838997 and 143839015.

It is not an unprimeable number, because it can be changed into a prime (143839009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711974 + ... + 712175.

It is an arithmetic number, because the mean of its divisors is an integer number (36315825).

Almost surely, 2^143839049 is an apocalyptic number.

It is an amenable number.

143839049 is a deficient number, since it is larger than the sum of its proper divisors (1424251).

143839049 is a wasteful number, since it uses less digits than its factorization.

143839049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424250.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 143839049 is about 11993.2918333542. The cubic root of 143839049 is about 523.9529231933.

It can be divided in two parts, 14383 and 9049, that added together give a palindrome (23432).

The spelling of 143839049 in words is "one hundred forty-three million, eight hundred thirty-nine thousand, forty-nine".