238166 has 4 divisors (see below), whose sum is σ = 357252. Its totient is φ = 119082.

The previous prime is 238163. The next prime is 238171. The reversal of 238166 is 661832.

238166 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.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59540 + ... + 59543.

It is an arithmetic number, because the mean of its divisors is an integer number (89313).

2²³⁸¹⁶⁶ is an apocalyptic number.

238166 is a deficient number, since it is larger than the sum of its proper divisors (119086).

238166 is a wasteful number, since it uses less digits than its factorization.

238166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119085.

The product of its digits is 1728, while the sum is 26.

The square root of 238166 is about 488.0225404630. The cubic root of 238166 is about 61.9859489490.

Adding to 238166 its reverse (661832), we get a palindrome (899998).

It can be divided in two parts, 238 and 166, that added together give a palindrome (404).

The spelling of 238166 in words is "two hundred thirty-eight thousand, one hundred sixty-six".