239023 has 2 divisors, whose sum is σ = 239024. Its totient is φ = 239022.

The previous prime is 239017. The next prime is 239027. The reversal of 239023 is 320932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 239023 - 2⁵ = 238991 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 3⁷ + 0 + 9⁵ + 2⁹ + 3¹¹ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119511 + 119512.

It is an arithmetic number, because the mean of its divisors is an integer number (119512).

2²³⁹⁰²³ is an apocalyptic number.

239023 is a deficient number, since it is larger than the sum of its proper divisors (1).

239023 is an equidigital number, since it uses as much as digits as its factorization.

239023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 239023 is about 488.8997852321. The cubic root of 239023 is about 62.0602085950.

Adding to 239023 its reverse (320932), we get a palindrome (559955).

The spelling of 239023 in words is "two hundred thirty-nine thousand, twenty-three".