238151171 has 2 divisors, whose sum is σ = 238151172. Its totient is φ = 238151170.

The previous prime is 238151159. The next prime is 238151189. The reversal of 238151171 is 171151832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238151171 - 2⁶ = 238151107 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (238151191) 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, 119075585 + 119075586.

It is an arithmetic number, because the mean of its divisors is an integer number (119075586).

Almost surely, 2^238151171 is an apocalyptic number.

238151171 is a deficient number, since it is larger than the sum of its proper divisors (1).

238151171 is an equidigital number, since it uses as much as digits as its factorization.

238151171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 29.

The square root of 238151171 is about 15432.1473230397. The cubic root of 238151171 is about 619.8466243920.

The spelling of 238151171 in words is "two hundred thirty-eight million, one hundred fifty-one thousand, one hundred seventy-one".