238378145 has 4 divisors (see below), whose sum is σ = 286053780. Its totient is φ = 190702512.

The previous prime is 238378139. The next prime is 238378159. The reversal of 238378145 is 541873832.

238378145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 185204881 + 53173264 = 13609^2 + 7292^2 .

It is a cyclic number.

It is not a de Polignac number, because 238378145 - 2⁶ = 238378081 is a prime.

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, 23837810 + ... + 23837819.

It is an arithmetic number, because the mean of its divisors is an integer number (71513445).

Almost surely, 2^238378145 is an apocalyptic number.

It is an amenable number.

238378145 is a deficient number, since it is larger than the sum of its proper divisors (47675635).

238378145 is an equidigital number, since it uses as much as digits as its factorization.

238378145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47675634.

The product of its digits is 161280, while the sum is 41.

The square root of 238378145 is about 15439.4995061368. The cubic root of 238378145 is about 620.0434803014.

The spelling of 238378145 in words is "two hundred thirty-eight million, three hundred seventy-eight thousand, one hundred forty-five".