238170745 has 4 divisors (see below), whose sum is σ = 285804900. Its totient is φ = 190536592.

The previous prime is 238170733. The next prime is 238170769. The reversal of 238170745 is 547071832.

238170745 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 62157456 + 176013289 = 7884^2 + 13267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238170745 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, 23817070 + ... + 23817079.

It is an arithmetic number, because the mean of its divisors is an integer number (71451225).

Almost surely, 2^238170745 is an apocalyptic number.

It is an amenable number.

238170745 is a deficient number, since it is larger than the sum of its proper divisors (47634155).

238170745 is an equidigital number, since it uses as much as digits as its factorization.

238170745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47634154.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 238170745 is about 15432.7815056133. The cubic root of 238170745 is about 619.8636059663.

The spelling of 238170745 in words is "two hundred thirty-eight million, one hundred seventy thousand, seven hundred forty-five".