142339 has 4 divisors (see below), whose sum is σ = 146224. Its totient is φ = 138456.

The previous prime is 142327. The next prime is 142357. The reversal of 142339 is 933241.

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

It is a cyclic number.

It is not a de Polignac number, because 142339 - 2⁷ = 142211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142319) 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, 1887 + ... + 1960.

It is an arithmetic number, because the mean of its divisors is an integer number (36556).

2¹⁴²³³⁹ is an apocalyptic number.

142339 is a deficient number, since it is larger than the sum of its proper divisors (3885).

142339 is an equidigital number, since it uses as much as digits as its factorization.

142339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884.

The product of its digits is 648, while the sum is 22.

The square root of 142339 is about 377.2784117863. The cubic root of 142339 is about 52.2125178554.

The spelling of 142339 in words is "one hundred forty-two thousand, three hundred thirty-nine".