239542 has 4 divisors (see below), whose sum is σ = 359316. Its totient is φ = 119770.

The previous prime is 239539. The next prime is 239543. The reversal of 239542 is 245932.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59884 + ... + 59887.

It is an arithmetic number, because the mean of its divisors is an integer number (89829).

2²³⁹⁵⁴² is an apocalyptic number.

239542 is a deficient number, since it is larger than the sum of its proper divisors (119774).

239542 is a wasteful number, since it uses less digits than its factorization.

239542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119773.

The product of its digits is 2160, while the sum is 25.

The square root of 239542 is about 489.4302810411. The cubic root of 239542 is about 62.1050940439.

The spelling of 239542 in words is "two hundred thirty-nine thousand, five hundred forty-two".