23136 has 24 divisors (see below), whose sum is σ = 60984. Its totient is φ = 7680.
The previous prime is 23131. The next prime is 23143. The reversal of 23136 is 63132.
23136 is nontrivially palindromic in base 15.
It is a tau number, because it is divible by the number of its divisors (24).
It is a nude number because it is divisible by every one of its digits.
It is an Ulam number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23131) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25 + ... + 216.
It is an arithmetic number, because the mean of its divisors is an integer number (2541).
223136 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30492).
23136 is an abundant number, since it is smaller than the sum of its proper divisors (37848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23136 is a wasteful number, since it uses less digits than its factorization.
23136 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 254 (or 246 counting only the distinct ones).
The product of its digits is 108, while the sum is 15.
The square root of 23136 is about 152.1052267347. The cubic root of 23136 is about 28.4946127090.
Adding to 23136 its reverse (63132), we get a palindrome (86268).
The spelling of 23136 in words is "twenty-three thousand, one hundred thirty-six".
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