238153 has 4 divisors (see below), whose sum is σ = 252180. Its totient is φ = 224128.

The previous prime is 238151. The next prime is 238157. The reversal of 238153 is 351832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 186624 + 51529 = 432^2 + 227^2 .

It is not a de Polignac number, because 238153 - 2¹ = 238151 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 8.

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 (238151) 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, 6988 + ... + 7021.

It is an arithmetic number, because the mean of its divisors is an integer number (63045).

2²³⁸¹⁵³ is an apocalyptic number.

It is an amenable number.

238153 is a deficient number, since it is larger than the sum of its proper divisors (14027).

238153 is a wasteful number, since it uses less digits than its factorization.

238153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14026.

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

The square root of 238153 is about 488.0092212244. The cubic root of 238153 is about 61.9848211194.

Adding to 238153 its reverse (351832), we get a palindrome (589985).

The spelling of 238153 in words is "two hundred thirty-eight thousand, one hundred fifty-three".