432161 has 2 divisors, whose sum is σ = 432162. Its totient is φ = 432160.

The previous prime is 432149. The next prime is 432163. The reversal of 432161 is 161234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 429025 + 3136 = 655^2 + 56^2 .

It is a cyclic number.

It is not a de Polignac number, because 432161 - 2⁶ = 432097 is a prime.

It is a Sophie Germain prime.

Together with 432163, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 432161.

It is not a weakly prime, because it can be changed into another prime (432163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216080 + 216081.

It is an arithmetic number, because the mean of its divisors is an integer number (216081).

2⁴³²¹⁶¹ is an apocalyptic number.

It is an amenable number.

432161 is a deficient number, since it is larger than the sum of its proper divisors (1).

432161 is an equidigital number, since it uses as much as digits as its factorization.

432161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 432161 is about 657.3895344467. The cubic root of 432161 is about 75.6046529055.

Adding to 432161 its reverse (161234), we get a palindrome (593395).

The spelling of 432161 in words is "four hundred thirty-two thousand, one hundred sixty-one".