238545117 has 6 divisors (see below), whose sum is σ = 344565182. Its totient is φ = 159030072.

The previous prime is 238545101. The next prime is 238545127. The reversal of 238545117 is 711545832.

It can be written as a sum of positive squares in only one way, i.e., 154107396 + 84437721 = 12414^2 + 9189^2 .

It is not a de Polignac number, because 238545117 - 2⁴ = 238545101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238545127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13252498 + ... + 13252515.

Almost surely, 2^238545117 is an apocalyptic number.

It is an amenable number.

238545117 is a deficient number, since it is larger than the sum of its proper divisors (106020065).

238545117 is a wasteful number, since it uses less digits than its factorization.

238545117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26505019 (or 26505016 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 238545117 is about 15444.9058592146. The cubic root of 238545117 is about 620.1882163563.

The spelling of 238545117 in words is "two hundred thirty-eight million, five hundred forty-five thousand, one hundred seventeen".