238284161 has 4 divisors (see below), whose sum is σ = 238425300. Its totient is φ = 238143024.

The previous prime is 238284139. The next prime is 238284203. The reversal of 238284161 is 161482832.

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 30030400 + 208253761 = 5480^2 + 14431^2 .

It is a cyclic number.

It is not a de Polignac number, because 238284161 - 2¹⁸ = 238022017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238284961) 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, 68006 + ... + 71423.

It is an arithmetic number, because the mean of its divisors is an integer number (59606325).

Almost surely, 2^238284161 is an apocalyptic number.

It is an amenable number.

238284161 is a deficient number, since it is larger than the sum of its proper divisors (141139).

238284161 is a wasteful number, since it uses less digits than its factorization.

238284161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141138.

The product of its digits is 18432, while the sum is 35.

The square root of 238284161 is about 15436.4555841035. The cubic root of 238284161 is about 619.9619825804.

The spelling of 238284161 in words is "two hundred thirty-eight million, two hundred eighty-four thousand, one hundred sixty-one".