231892 has 6 divisors (see below), whose sum is σ = 405818. Its totient is φ = 115944.

The previous prime is 231877. The next prime is 231893. The reversal of 231892 is 298132.

231892 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 156816 + 75076 = 396^2 + 274^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28983 + ... + 28990.

2²³¹⁸⁹² is an apocalyptic number.

It is an amenable number.

231892 is a deficient number, since it is larger than the sum of its proper divisors (173926).

231892 is a wasteful number, since it uses less digits than its factorization.

231892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57977 (or 57975 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 231892 is about 481.5516587034. The cubic root of 231892 is about 61.4368002574.

The spelling of 231892 in words is "two hundred thirty-one thousand, eight hundred ninety-two".