239345 has 4 divisors (see below), whose sum is σ = 287220. Its totient is φ = 191472.

The previous prime is 239333. The next prime is 239347. The reversal of 239345 is 543932.

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

It can be written as a sum of positive squares in 2 ways, for example, as 141376 + 97969 = 376^2 + 313^2 .

It is a cyclic number.

It is not a de Polignac number, because 239345 - 2⁴ = 239329 is a prime.

It is a super-3 number, since 3×239345³ = 41133373850965875, which contains 333 as substring.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (239347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23930 + ... + 23939.

It is an arithmetic number, because the mean of its divisors is an integer number (71805).

2²³⁹³⁴⁵ is an apocalyptic number.

It is an amenable number.

239345 is a deficient number, since it is larger than the sum of its proper divisors (47875).

239345 is an equidigital number, since it uses as much as digits as its factorization.

239345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47874.

The product of its digits is 3240, while the sum is 26.

The square root of 239345 is about 489.2289852411. The cubic root of 239345 is about 62.0880642412.

The spelling of 239345 in words is "two hundred thirty-nine thousand, three hundred forty-five".