231358 has 4 divisors (see below), whose sum is σ = 347040. Its totient is φ = 115678.

The previous prime is 231349. The next prime is 231359. The reversal of 231358 is 853132.

231358 is digitally balanced in base 3, 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.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57838 + ... + 57841.

It is an arithmetic number, because the mean of its divisors is an integer number (86760).

2²³¹³⁵⁸ is an apocalyptic number.

231358 is a deficient number, since it is larger than the sum of its proper divisors (115682).

231358 is a wasteful number, since it uses less digits than its factorization.

231358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115681.

The product of its digits is 720, while the sum is 22.

The square root of 231358 is about 480.9968814868. The cubic root of 231358 is about 61.3896052034.

The spelling of 231358 in words is "two hundred thirty-one thousand, three hundred fifty-eight".