33100 has 18 divisors (see below), whose sum is σ = 72044.
Its totient is φ = 13200.
The previous prime is 33091. The next prime is 33107. The reversal of 33100 is 133.
Adding to 33100 its reverse (133), we get a palindrome (33233).
It is a happy number.
It is a super-2 number, since 2×331002 = 2191220000, which contains 22 as substring.
It is a nialpdrome in base 10.
It is not an unprimeable number, because it can be changed into a prime (33107) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66 + ... + 265.
233100 is an apocalyptic number.
It is an amenable number.
33100 is an abundant number, since it is smaller than the sum of its proper divisors (38944).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
33100 is a wasteful number, since it uses less digits than its factorization.
33100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 345 (or 338 counting only the distinct ones).
The product of its (nonzero) digits is 9, while the sum is 7.
The square root of 33100 is about 181.9340539866.
The cubic root of 33100 is about 32.1077099650.
The spelling of 33100 in words is "thirty-three thousand, one hundred".