235317 has 4 divisors (see below), whose sum is σ = 313760. Its totient is φ = 156876.

The previous prime is 235309. The next prime is 235337. The reversal of 235317 is 713532.

It is a happy number.

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 not a de Polignac number, because 235317 - 2³ = 235309 is a prime.

It is a D-number.

It is a Duffinian number.

235317 is a lucky number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 235293 and 235302.

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 235317.

It is not an unprimeable number, because it can be changed into a prime (235307) 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, 39217 + ... + 39222.

It is an arithmetic number, because the mean of its divisors is an integer number (78440).

2²³⁵³¹⁷ is an apocalyptic number.

It is an amenable number.

235317 is a deficient number, since it is larger than the sum of its proper divisors (78443).

235317 is an equidigital number, since it uses as much as digits as its factorization.

235317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78442.

The product of its digits is 630, while the sum is 21.

The square root of 235317 is about 485.0948360888. The cubic root of 235317 is about 61.7377931036.

Adding to 235317 its reverse (713532), we get a palindrome (948849).

The spelling of 235317 in words is "two hundred thirty-five thousand, three hundred seventeen".