822131 has 2 divisors, whose sum is σ = 822132. Its totient is φ = 822130.

The previous prime is 822113. The next prime is 822139. The reversal of 822131 is 131228.

Together with previous prime (822113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 822131 - 2⁶ = 822067 is a prime.

It is a super-2 number, since 2×822131² = 1351798762322, which contains 22 as substring.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 822131.

It is not a weakly prime, because it can be changed into another prime (822139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411065 + 411066.

It is an arithmetic number, because the mean of its divisors is an integer number (411066).

2⁸²²¹³¹ is an apocalyptic number.

822131 is a deficient number, since it is larger than the sum of its proper divisors (1).

822131 is an equidigital number, since it uses as much as digits as its factorization.

822131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 17.

The square root of 822131 is about 906.7143982534. The cubic root of 822131 is about 93.6800271943.

Adding to 822131 its reverse (131228), we get a palindrome (953359).

The spelling of 822131 in words is "eight hundred twenty-two thousand, one hundred thirty-one".