231967 has 2 divisors, whose sum is σ = 231968. Its totient is φ = 231966.

The previous prime is 231961. The next prime is 232003. The reversal of 231967 is 769132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231967 - 2⁷ = 231839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115983 + 115984.

It is an arithmetic number, because the mean of its divisors is an integer number (115984).

2²³¹⁹⁶⁷ is an apocalyptic number.

231967 is a deficient number, since it is larger than the sum of its proper divisors (1).

231967 is an equidigital number, since it uses as much as digits as its factorization.

231967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 28.

The square root of 231967 is about 481.6295256730. The cubic root of 231967 is about 61.4434229717.

The spelling of 231967 in words is "two hundred thirty-one thousand, nine hundred sixty-seven".