238611165 has 32 divisors (see below), whose sum is σ = 412478976. Its totient is φ = 117089280.

The previous prime is 238611161. The next prime is 238611179. The reversal of 238611165 is 561116832.

It is not a de Polignac number, because 238611165 - 2² = 238611161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238611161) 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 in 31 ways as a sum of consecutive naturals, for example, 63900 + ... + 67530.

It is an arithmetic number, because the mean of its divisors is an integer number (12889968).

Almost surely, 2^238611165 is an apocalyptic number.

It is an amenable number.

238611165 is a deficient number, since it is larger than the sum of its proper divisors (173867811).

238611165 is a wasteful number, since it uses less digits than its factorization.

238611165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989.

The product of its digits is 8640, while the sum is 33.

The square root of 238611165 is about 15447.0438919555. The cubic root of 238611165 is about 620.2454499898.

Adding to 238611165 its reverse (561116832), we get a palindrome (799727997).

The spelling of 238611165 in words is "two hundred thirty-eight million, six hundred eleven thousand, one hundred sixty-five".