82318231 has 8 divisors (see below), whose sum is σ = 84065184. Its totient is φ = 80588160.

The previous prime is 82318189. The next prime is 82318253. The reversal of 82318231 is 13281328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82318231 - 2¹⁷ = 82187159 is a prime.

It is a super-2 number, since 2×82318231² = 13552582309938722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82318231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82318031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5886 + ... + 14116.

It is an arithmetic number, because the mean of its divisors is an integer number (10508148).

Almost surely, 2^82318231 is an apocalyptic number.

82318231 is a deficient number, since it is larger than the sum of its proper divisors (1746953).

82318231 is a wasteful number, since it uses less digits than its factorization.

82318231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8441.

The product of its digits is 2304, while the sum is 28.

The square root of 82318231 is about 9072.9394905951. The cubic root of 82318231 is about 435.0094347714.

Adding to 82318231 its reverse (13281328), we get a palindrome (95599559).

The spelling of 82318231 in words is "eighty-two million, three hundred eighteen thousand, two hundred thirty-one".