143107439 has 4 divisors (see below), whose sum is σ = 147723840. Its totient is φ = 138491040.

The previous prime is 143107429. The next prime is 143107451. The reversal of 143107439 is 934701341.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143107439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143107409) 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, 2308154 + ... + 2308215.

It is an arithmetic number, because the mean of its divisors is an integer number (36930960).

Almost surely, 2^143107439 is an apocalyptic number.

143107439 is a deficient number, since it is larger than the sum of its proper divisors (4616401).

143107439 is an equidigital number, since it uses as much as digits as its factorization.

143107439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4616400.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 143107439 is about 11962.7521499026. The cubic root of 143107439 is about 523.0630838117.

The spelling of 143107439 in words is "one hundred forty-three million, one hundred seven thousand, four hundred thirty-nine".