238157 has 2 divisors, whose sum is σ = 238158. Its totient is φ = 238156.

The previous prime is 238151. The next prime is 238159. The reversal of 238157 is 751832.

238157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206116 + 32041 = 454^2 + 179^2 .

It is a cyclic number.

It is not a de Polignac number, because 238157 - 2⁴ = 238141 is a prime.

Together with 238159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119078 + 119079.

It is an arithmetic number, because the mean of its divisors is an integer number (119079).

2²³⁸¹⁵⁷ is an apocalyptic number.

It is an amenable number.

238157 is a deficient number, since it is larger than the sum of its proper divisors (1).

238157 is an equidigital number, since it uses as much as digits as its factorization.

238157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 26.

The square root of 238157 is about 488.0133194904. The cubic root of 238157 is about 61.9851681483.

Adding to 238157 its reverse (751832), we get a palindrome (989989).

The spelling of 238157 in words is "two hundred thirty-eight thousand, one hundred fifty-seven".