233158 has 4 divisors (see below), whose sum is σ = 349740. Its totient is φ = 116578.

The previous prime is 233143. The next prime is 233159. The reversal of 233158 is 851332.

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 (233159) by changing a digit.

233158 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 as a sum of consecutive naturals, namely, 58288 + ... + 58291.

It is an arithmetic number, because the mean of its divisors is an integer number (87435).

2²³³¹⁵⁸ is an apocalyptic number.

233158 is a deficient number, since it is larger than the sum of its proper divisors (116582).

233158 is a wasteful number, since it uses less digits than its factorization.

233158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116581.

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

The square root of 233158 is about 482.8643701911. The cubic root of 233158 is about 61.5484008785.

The spelling of 233158 in words is "two hundred thirty-three thousand, one hundred fifty-eight".