238164117 has 4 divisors (see below), whose sum is σ = 317552160. Its totient is φ = 158776076.

The previous prime is 238164109. The next prime is 238164137. The reversal of 238164117 is 711461832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 238164117 - 2³ = 238164109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238164137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39694017 + ... + 39694022.

It is an arithmetic number, because the mean of its divisors is an integer number (79388040).

Almost surely, 2^238164117 is an apocalyptic number.

It is an amenable number.

238164117 is a deficient number, since it is larger than the sum of its proper divisors (79388043).

238164117 is an equidigital number, since it uses as much as digits as its factorization.

238164117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79388042.

The product of its digits is 8064, while the sum is 33.

The square root of 238164117 is about 15432.5667664196. The cubic root of 238164117 is about 619.8578558981.

The spelling of 238164117 in words is "two hundred thirty-eight million, one hundred sixty-four thousand, one hundred seventeen".