238816271 has 2 divisors, whose sum is σ = 238816272. Its totient is φ = 238816270.

The previous prime is 238816229. The next prime is 238816297. The reversal of 238816271 is 172618832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238816271 - 2²⁶ = 171707407 is a prime.

It is a super-2 number, since 2×238816271² = 114066422588690882, which contains 22 as substring.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238816211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119408135 + 119408136.

It is an arithmetic number, because the mean of its divisors is an integer number (119408136).

Almost surely, 2^238816271 is an apocalyptic number.

238816271 is a deficient number, since it is larger than the sum of its proper divisors (1).

238816271 is an equidigital number, since it uses as much as digits as its factorization.

238816271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 38.

The square root of 238816271 is about 15453.6814707694. The cubic root of 238816271 is about 620.4231164872.

The spelling of 238816271 in words is "two hundred thirty-eight million, eight hundred sixteen thousand, two hundred seventy-one".