231293 has 2 divisors, whose sum is σ = 231294. Its totient is φ = 231292.

The previous prime is 231289. The next prime is 231299. The reversal of 231293 is 392132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228484 + 2809 = 478^2 + 53^2 .

It is a cyclic number.

It is not a de Polignac number, because 231293 - 2² = 231289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115646 + 115647.

It is an arithmetic number, because the mean of its divisors is an integer number (115647).

2²³¹²⁹³ is an apocalyptic number.

It is an amenable number.

231293 is a deficient number, since it is larger than the sum of its proper divisors (1).

231293 is an equidigital number, since it uses as much as digits as its factorization.

231293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 20.

The square root of 231293 is about 480.9293087347. The cubic root of 231293 is about 61.3838555311.

It can be divided in two parts, 23129 and 3, that added together give a palindrome (23132).

The spelling of 231293 in words is "two hundred thirty-one thousand, two hundred ninety-three".