142107239 has 2 divisors, whose sum is σ = 142107240. Its totient is φ = 142107238.

The previous prime is 142107209. The next prime is 142107253. The reversal of 142107239 is 932701241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142107239 - 2¹⁶ = 142041703 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142107209) 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 as a sum of consecutive naturals, namely, 71053619 + 71053620.

It is an arithmetic number, because the mean of its divisors is an integer number (71053620).

Almost surely, 2^142107239 is an apocalyptic number.

142107239 is a deficient number, since it is larger than the sum of its proper divisors (1).

142107239 is an equidigital number, since it uses as much as digits as its factorization.

142107239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 142107239 is about 11920.8740870794. The cubic root of 142107239 is about 521.8416441994.

The spelling of 142107239 in words is "one hundred forty-two million, one hundred seven thousand, two hundred thirty-nine".