438234161 has 2 divisors, whose sum is σ = 438234162. Its totient is φ = 438234160.

The previous prime is 438234119. The next prime is 438234193. The reversal of 438234161 is 161432834.

It is an a-pointer prime, because the next prime (438234193) can be obtained adding 438234161 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339112225 + 99121936 = 18415^2 + 9956^2 .

It is a cyclic number.

It is not a de Polignac number, because 438234161 - 2¹⁰ = 438233137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (438234101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219117080 + 219117081.

It is an arithmetic number, because the mean of its divisors is an integer number (219117081).

Almost surely, 2^438234161 is an apocalyptic number.

It is an amenable number.

438234161 is a deficient number, since it is larger than the sum of its proper divisors (1).

438234161 is an equidigital number, since it uses as much as digits as its factorization.

438234161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 438234161 is about 20934.0431116399. The cubic root of 438234161 is about 759.5716428450.

Adding to 438234161 its reverse (161432834), we get a palindrome (599666995).

The spelling of 438234161 in words is "four hundred thirty-eight million, two hundred thirty-four thousand, one hundred sixty-one".