239109 has 8 divisors (see below), whose sum is σ = 343392. Its totient is φ = 147120.

The previous prime is 239087. The next prime is 239119. The reversal of 239109 is 901932.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 239109 - 2⁸ = 238853 is a prime.

It is a super-2 number, since 2×239109² = 114346227762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3027 + ... + 3104.

It is an arithmetic number, because the mean of its divisors is an integer number (42924).

2²³⁹¹⁰⁹ is an apocalyptic number.

It is an amenable number.

239109 is a deficient number, since it is larger than the sum of its proper divisors (104283).

239109 is a wasteful number, since it uses less digits than its factorization.

239109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6147.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 239109 is about 488.9877299074. The cubic root of 239109 is about 62.0676507491.

The spelling of 239109 in words is "two hundred thirty-nine thousand, one hundred nine".