231654 has 8 divisors (see below), whose sum is σ = 463320. Its totient is φ = 77216.

The previous prime is 231643. The next prime is 231661. The reversal of 231654 is 456132.

It is a happy number.

231654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

231654 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 231654.

It is a congruent number.

It is an unprimeable number.

231654 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19299 + ... + 19310.

It is an arithmetic number, because the mean of its divisors is an integer number (57915).

2²³¹⁶⁵⁴ is an apocalyptic number.

231654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231654 is a wasteful number, since it uses less digits than its factorization.

231654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38614.

The product of its digits is 720, while the sum is 21.

The square root of 231654 is about 481.3044774361. The cubic root of 231654 is about 61.4157747173.

Adding to 231654 its reverse (456132), we get a palindrome (687786).

The spelling of 231654 in words is "two hundred thirty-one thousand, six hundred fifty-four".