23459 has 2 divisors, whose sum is σ = 23460.
Its totient is φ = 23458.
The previous prime is 23447. The next prime is 23473. The reversal of 23459 is 95432.
Subtracting from 23459 its sum of digits (23), we obtain a triangular number (23436 = T216).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 23459 - 28 = 23203 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a plaindrome in base 10 and base 12.
It is not a weakly prime, because it can be changed into another prime (23059) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11729 + 11730.
It is an arithmetic number, because the mean of its divisors is an integer number (11730).
223459 is an apocalyptic number.
23459 is a deficient number, since it is larger than the sum of its proper divisors (1).
23459 is an equidigital number, since it uses as much as digits as its factorization.
23459 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1080, while the sum is 23.
The square root of 23459 is about 153.1633115338.
The cubic root of 23459 is about 28.6266040939.
The spelling of 23459 in words is "twenty-three thousand, four hundred fifty-nine".