231716 has 12 divisors (see below), whose sum is σ = 413532. Its totient is φ = 113568.

The previous prime is 231709. The next prime is 231719. The reversal of 231716 is 617132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 206116 + 25600 = 454^2 + 160^2 .

It is not an unprimeable number, because it can be changed into a prime (231719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335 + ... + 758.

It is an arithmetic number, because the mean of its divisors is an integer number (34461).

2²³¹⁷¹⁶ is an apocalyptic number.

It is an amenable number.

231716 is a deficient number, since it is larger than the sum of its proper divisors (181816).

231716 is a wasteful number, since it uses less digits than its factorization.

231716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150 (or 1148 counting only the distinct ones).

The product of its digits is 252, while the sum is 20.

The square root of 231716 is about 481.3688814205. The cubic root of 231716 is about 61.4212533454.

Adding to 231716 its reverse (617132), we get a palindrome (848848).

The spelling of 231716 in words is "two hundred thirty-one thousand, seven hundred sixteen".