238395145 has 4 divisors (see below), whose sum is σ = 286074180. Its totient is φ = 190716112.

The previous prime is 238395127. The next prime is 238395191. The reversal of 238395145 is 541593832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190660864 + 47734281 = 13808^2 + 6909^2 .

It is a cyclic number.

It is not a de Polignac number, because 238395145 - 2²³ = 230006537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238395098 and 238395107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23839510 + ... + 23839519.

It is an arithmetic number, because the mean of its divisors is an integer number (71518545).

Almost surely, 2^238395145 is an apocalyptic number.

It is an amenable number.

238395145 is a deficient number, since it is larger than the sum of its proper divisors (47679035).

238395145 is an equidigital number, since it uses as much as digits as its factorization.

238395145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47679034.

The product of its digits is 129600, while the sum is 40.

The square root of 238395145 is about 15440.0500323024. The cubic root of 238395145 is about 620.0582194722.

The spelling of 238395145 in words is "two hundred thirty-eight million, three hundred ninety-five thousand, one hundred forty-five".