239057 has 16 divisors (see below), whose sum is σ = 306432. Its totient is φ = 181440.

The previous prime is 239053. The next prime is 239069. The reversal of 239057 is 750932.

It is not a de Polignac number, because 239057 - 2² = 239053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3332 + ... + 3402.

It is an arithmetic number, because the mean of its divisors is an integer number (19152).

2²³⁹⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

239057 is a deficient number, since it is larger than the sum of its proper divisors (67375).

239057 is a wasteful number, since it uses less digits than its factorization.

239057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 239057 is about 488.9345559479. The cubic root of 239057 is about 62.0631510553.

Adding to 239057 its reverse (750932), we get a palindrome (989989).

The spelling of 239057 in words is "two hundred thirty-nine thousand, fifty-seven".