238316157 has 12 divisors (see below), whose sum is σ = 348382944. Its totient is φ = 156962760.

The previous prime is 238316153. The next prime is 238316161. The reversal of 238316157 is 751613832.

238316157 is a `hidden beast` number, since 2 + 3 + 8 + 31 + 615 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (238316153) and next prime (238316161).

It is not a de Polignac number, because 238316157 - 2² = 238316153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238316153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158769 + ... + 160262.

It is an arithmetic number, because the mean of its divisors is an integer number (29031912).

Almost surely, 2^238316157 is an apocalyptic number.

It is an amenable number.

238316157 is a deficient number, since it is larger than the sum of its proper divisors (110066787).

238316157 is a wasteful number, since it uses less digits than its factorization.

238316157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319120 (or 319117 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 238316157 is about 15437.4919271234. The cubic root of 238316157 is about 619.9897301455.

Adding to 238316157 its reverse (751613832), we get a palindrome (989929989).

The spelling of 238316157 in words is "two hundred thirty-eight million, three hundred sixteen thousand, one hundred fifty-seven".