213276 has 24 divisors (see below), whose sum is σ = 568960. Its totient is φ = 60912.
The previous prime is 213263. The next prime is 213281. The reversal of 213276 is 672312.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 213276.
It is an unprimeable number.
213276 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186 + ... + 1353.
2213276 is an apocalyptic number.
It is an amenable number.
213276 is an abundant number, since it is smaller than the sum of its proper divisors (355684).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213276 is a wasteful number, since it uses less digits than its factorization.
213276 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2553 (or 2551 counting only the distinct ones).
The product of its digits is 504, while the sum is 21.
The square root of 213276 is about 461.8181460272. The cubic root of 213276 is about 59.7467100188.
Adding to 213276 its reverse (672312), we get a palindrome (885588).
The spelling of 213276 in words is "two hundred thirteen thousand, two hundred seventy-six".
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