238868111 has 2 divisors, whose sum is σ = 238868112. Its totient is φ = 238868110.

The previous prime is 238868093. The next prime is 238868117. The reversal of 238868111 is 111868832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238868111 - 2¹⁴ = 238851727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238868117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119434055 + 119434056.

It is an arithmetic number, because the mean of its divisors is an integer number (119434056).

Almost surely, 2^238868111 is an apocalyptic number.

238868111 is a deficient number, since it is larger than the sum of its proper divisors (1).

238868111 is an equidigital number, since it uses as much as digits as its factorization.

238868111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 38.

The square root of 238868111 is about 15455.3586499958. The cubic root of 238868111 is about 620.4680051196.

The spelling of 238868111 in words is "two hundred thirty-eight million, eight hundred sixty-eight thousand, one hundred eleven".