312183 has 6 divisors (see below), whose sum is σ = 450944. Its totient is φ = 208116.

The previous prime is 312161. The next prime is 312197. The reversal of 312183 is 381213.

It is a de Polignac number, because none of the positive numbers 2^k-312183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312083) 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 5 ways as a sum of consecutive naturals, for example, 17335 + ... + 17352.

2³¹²¹⁸³ is an apocalyptic number.

312183 is a deficient number, since it is larger than the sum of its proper divisors (138761).

312183 is a wasteful number, since it uses less digits than its factorization.

312183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34693 (or 34690 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 312183 is about 558.7333890148. The cubic root of 312183 is about 67.8374867748.

Adding to 312183 its reverse (381213), we get a palindrome (693396).

The spelling of 312183 in words is "three hundred twelve thousand, one hundred eighty-three".