142039 has 2 divisors, whose sum is σ = 142040. Its totient is φ = 142038.

The previous prime is 142031. The next prime is 142049. The reversal of 142039 is 930241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142039 - 2³ = 142031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71019 + 71020.

It is an arithmetic number, because the mean of its divisors is an integer number (71020).

2¹⁴²⁰³⁹ is an apocalyptic number.

142039 is a deficient number, since it is larger than the sum of its proper divisors (1).

142039 is an equidigital number, since it uses as much as digits as its factorization.

142039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 142039 is about 376.8806177027. The cubic root of 142039 is about 52.1758102470.

The spelling of 142039 in words is "one hundred forty-two thousand, thirty-nine".