238145163 has 16 divisors (see below), whose sum is σ = 337167360. Its totient is φ = 148996736.

The previous prime is 238145123. The next prime is 238145191. The reversal of 238145163 is 361541832.

It is a cyclic number.

It is not a de Polignac number, because 238145163 - 2¹⁶ = 238079627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238145113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11806 + ... + 24812.

It is an arithmetic number, because the mean of its divisors is an integer number (21072960).

Almost surely, 2^238145163 is an apocalyptic number.

238145163 is a deficient number, since it is larger than the sum of its proper divisors (99022197).

238145163 is a wasteful number, since it uses less digits than its factorization.

238145163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13386.

The product of its digits is 17280, while the sum is 33.

The square root of 238145163 is about 15431.9526632244. The cubic root of 238145163 is about 619.8414119187.

Adding to 238145163 its reverse (361541832), we get a palindrome (599686995).

The spelling of 238145163 in words is "two hundred thirty-eight million, one hundred forty-five thousand, one hundred sixty-three".