235213 has 4 divisors (see below), whose sum is σ = 256608. Its totient is φ = 213820.
The previous prime is 235211. The next prime is 235231. The reversal of 235213 is 312532.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 235213 - 21 = 235211 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (235211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10681 + ... + 10702.
It is an arithmetic number, because the mean of its divisors is an integer number (64152).
2235213 is an apocalyptic number.
It is an amenable number.
235213 is a deficient number, since it is larger than the sum of its proper divisors (21395).
235213 is a wasteful number, since it uses less digits than its factorization.
235213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21394.
The product of its digits is 180, while the sum is 16.
The square root of 235213 is about 484.9876287082. The cubic root of 235213 is about 61.7286966130.
Adding to 235213 its reverse (312532), we get a palindrome (547745).
The spelling of 235213 in words is "two hundred thirty-five thousand, two hundred thirteen".
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