823353161 has 2 divisors, whose sum is σ = 823353162. Its totient is φ = 823353160.

The previous prime is 823353137. The next prime is 823353187. The reversal of 823353161 is 161353328.

823353161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 726625936 + 96727225 = 26956^2 + 9835^2 .

It is a cyclic number.

It is not a de Polignac number, because 823353161 - 2¹⁴ = 823336777 is a prime.

It is not a weakly prime, because it can be changed into another prime (823353131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411676580 + 411676581.

It is an arithmetic number, because the mean of its divisors is an integer number (411676581).

Almost surely, 2^823353161 is an apocalyptic number.

It is an amenable number.

823353161 is a deficient number, since it is larger than the sum of its proper divisors (1).

823353161 is an equidigital number, since it uses as much as digits as its factorization.

823353161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 823353161 is about 28694.1311246743. The cubic root of 823353161 is about 937.2642506717.

The spelling of 823353161 in words is "eight hundred twenty-three million, three hundred fifty-three thousand, one hundred sixty-one".