938444161 has 2 divisors, whose sum is σ = 938444162. Its totient is φ = 938444160.

The previous prime is 938444141. The next prime is 938444189. The reversal of 938444161 is 161444839.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 937890625 + 553536 = 30625^2 + 744^2 .

It is a cyclic number.

It is not a de Polignac number, because 938444161 - 2⁷ = 938444033 is a prime.

It is a Chen prime.

It is equal to p_47872363 and since 938444161 and 47872363 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (938444141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469222080 + 469222081.

It is an arithmetic number, because the mean of its divisors is an integer number (469222081).

Almost surely, 2^938444161 is an apocalyptic number.

It is an amenable number.

938444161 is a deficient number, since it is larger than the sum of its proper divisors (1).

938444161 is an equidigital number, since it uses as much as digits as its factorization.

938444161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 938444161 is about 30634.0359894024. The cubic root of 938444161 is about 979.0453569765.

The spelling of 938444161 in words is "nine hundred thirty-eight million, four hundred forty-four thousand, one hundred sixty-one".