142150139 has 2 divisors, whose sum is σ = 142150140. Its totient is φ = 142150138.

The previous prime is 142150133. The next prime is 142150163. The reversal of 142150139 is 931051241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142150139 - 2⁴ = 142150123 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (142150133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71075069 + 71075070.

It is an arithmetic number, because the mean of its divisors is an integer number (71075070).

Almost surely, 2^142150139 is an apocalyptic number.

142150139 is a deficient number, since it is larger than the sum of its proper divisors (1).

142150139 is an equidigital number, since it uses as much as digits as its factorization.

142150139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 142150139 is about 11922.6733159975. The cubic root of 142150139 is about 521.8941509173.

The spelling of 142150139 in words is "one hundred forty-two million, one hundred fifty thousand, one hundred thirty-nine".