231667 has 8 divisors (see below), whose sum is σ = 248400. Its totient is φ = 215424.

The previous prime is 231661. The next prime is 231677. The reversal of 231667 is 766132.

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 231667 - 2¹⁵ = 198899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1623 + ... + 1759.

It is an arithmetic number, because the mean of its divisors is an integer number (31050).

2²³¹⁶⁶⁷ is an apocalyptic number.

231667 is a deficient number, since it is larger than the sum of its proper divisors (16733).

231667 is a wasteful number, since it uses less digits than its factorization.

231667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245.

The product of its digits is 1512, while the sum is 25.

The square root of 231667 is about 481.3179822113. The cubic root of 231667 is about 61.4169235429.

Adding to 231667 its reverse (766132), we get a palindrome (997799).

It can be divided in two parts, 231 and 667, that added together give a palindrome (898).

The spelling of 231667 in words is "two hundred thirty-one thousand, six hundred sixty-seven".