231283 has 4 divisors (see below), whose sum is σ = 249088. Its totient is φ = 213480.

The previous prime is 231277. The next prime is 231289. The reversal of 231283 is 382132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (231277) and next prime (231289).

It is a cyclic number.

It is not a de Polignac number, because 231283 - 2⁹ = 230771 is a prime.

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 231283.

It is not an unprimeable number, because it can be changed into a prime (231289) 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, 8883 + ... + 8908.

It is an arithmetic number, because the mean of its divisors is an integer number (62272).

2²³¹²⁸³ is an apocalyptic number.

231283 is a deficient number, since it is larger than the sum of its proper divisors (17805).

231283 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 231283 = (382231)₉.

231283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17804.

The product of its digits is 288, while the sum is 19.

The square root of 231283 is about 480.9189120839. The cubic root of 231283 is about 61.3829708705.

The spelling of 231283 in words is "two hundred thirty-one thousand, two hundred eighty-three".