22659 has 16 divisors (see below), whose sum is σ = 37632.
Its totient is φ = 11808.
The previous prime is 22651. The next prime is 22669. The reversal of 22659 is 95622.
It is not a de Polignac number, because 22659 - 23 = 22651 is a prime.
It is an Ulam number.
It is a nialpdrome in base 13.
It is not an unprimeable number, because it can be changed into a prime (22651) 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, 232 + ... + 314.
It is an arithmetic number, because the mean of its divisors is an integer number (2352).
222659 is an apocalyptic number.
22659 is a deficient number, since it is larger than the sum of its proper divisors (14973).
22659 is a wasteful number, since it uses less digits than its factorization.
22659 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106.
The product of its digits is 1080, while the sum is 24.
The square root of 22659 is about 150.5290669605.
The cubic root of 22659 is about 28.2974247137.
The spelling of 22659 in words is "twenty-two thousand, six hundred fifty-nine".