142330439 has 2 divisors, whose sum is σ = 142330440. Its totient is φ = 142330438.

The previous prime is 142330421. The next prime is 142330451. The reversal of 142330439 is 934033241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142330439 - 2²⁰ = 141281863 is a prime.

It is a Chen prime.

It is equal to p_8036318 and since 142330439 and 8036318 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142330499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71165219 + 71165220.

It is an arithmetic number, because the mean of its divisors is an integer number (71165220).

Almost surely, 2^142330439 is an apocalyptic number.

142330439 is a deficient number, since it is larger than the sum of its proper divisors (1).

142330439 is an equidigital number, since it uses as much as digits as its factorization.

142330439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 142330439 is about 11930.2321435922. The cubic root of 142330439 is about 522.1147105790.

The spelling of 142330439 in words is "one hundred forty-two million, three hundred thirty thousand, four hundred thirty-nine".