213952 has 14 divisors (see below), whose sum is σ = 424688. Its totient is φ = 106944.
The previous prime is 213949. The next prime is 213953. The reversal of 213952 is 259312.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213953) by changing a digit.
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 as a sum of consecutive naturals, namely, 1608 + ... + 1735.
2213952 is an apocalyptic number.
It is an amenable number.
213952 is a deficient number, since it is larger than the sum of its proper divisors (210736).
213952 is an equidigital number, since it uses as much as digits as its factorization.
213952 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3355 (or 3345 counting only the distinct ones).
The product of its digits is 540, while the sum is 22.
The square root of 213952 is about 462.5494568152. The cubic root of 213952 is about 59.8097678701.
The spelling of 213952 in words is "two hundred thirteen thousand, nine hundred fifty-two".
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