231193 has 4 divisors (see below), whose sum is σ = 236160. Its totient is φ = 226228.

The previous prime is 231169. The next prime is 231197. The reversal of 231193 is 391132.

231193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231193.

It is not an unprimeable number, because it can be changed into a prime (231197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2413 + ... + 2506.

It is an arithmetic number, because the mean of its divisors is an integer number (59040).

2²³¹¹⁹³ is an apocalyptic number.

It is an amenable number.

231193 is a deficient number, since it is larger than the sum of its proper divisors (4967).

231193 is an equidigital number, since it uses as much as digits as its factorization.

231193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4966.

The product of its digits is 162, while the sum is 19.

The square root of 231193 is about 480.8253321114. The cubic root of 231193 is about 61.3750077775.

It can be divided in two parts, 231 and 193, that added together give a palindrome (424).

The spelling of 231193 in words is "two hundred thirty-one thousand, one hundred ninety-three".