822161653 has 2 divisors, whose sum is σ = 822161654. Its totient is φ = 822161652.

The previous prime is 822161651. The next prime is 822161689. The reversal of 822161653 is 356161228.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 578739249 + 243422404 = 24057^2 + 15602^2 .

It is a cyclic number.

It is not a de Polignac number, because 822161653 - 2¹ = 822161651 is a prime.

Together with 822161651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (822161651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411080826 + 411080827.

It is an arithmetic number, because the mean of its divisors is an integer number (411080827).

Almost surely, 2^822161653 is an apocalyptic number.

It is an amenable number.

822161653 is a deficient number, since it is larger than the sum of its proper divisors (1).

822161653 is an equidigital number, since it uses as much as digits as its factorization.

822161653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 822161653 is about 28673.3613829980. The cubic root of 822161653 is about 936.8119146061.

The spelling of 822161653 in words is "eight hundred twenty-two million, one hundred sixty-one thousand, six hundred fifty-three".