23039 has 2 divisors, whose sum is σ = 23040. Its totient is φ = 23038.
The previous prime is 23029. The next prime is 23041. The reversal of 23039 is 93032.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 23039 - 28 = 22783 is a prime.
Together with 23041, it forms a pair of twin primes.
It is a Chen prime.
It is a plaindrome in base 12 and base 16.
It is a nialpdrome in base 13.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23029) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11519 + 11520.
It is an arithmetic number, because the mean of its divisors is an integer number (11520).
223039 is an apocalyptic number.
23039 is a deficient number, since it is larger than the sum of its proper divisors (1).
23039 is an equidigital number, since it uses as much as digits as its factorization.
23039 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 162, while the sum is 17.
The square root of 23039 is about 151.7860336131. The cubic root of 23039 is about 28.4547347525.
The spelling of 23039 in words is "twenty-three thousand, thirty-nine".
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