522161 has 2 divisors, whose sum is σ = 522162. Its totient is φ = 522160.

The previous prime is 522157. The next prime is 522167. The reversal of 522161 is 161225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336400 + 185761 = 580^2 + 431^2 .

It is a cyclic number.

It is not a de Polignac number, because 522161 - 2² = 522157 is a prime.

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 522161.

It is not a weakly prime, because it can be changed into another prime (522167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261080 + 261081.

It is an arithmetic number, because the mean of its divisors is an integer number (261081).

2⁵²²¹⁶¹ is an apocalyptic number.

It is an amenable number.

522161 is a deficient number, since it is larger than the sum of its proper divisors (1).

522161 is an equidigital number, since it uses as much as digits as its factorization.

522161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 17.

The square root of 522161 is about 722.6070854898. The cubic root of 522161 is about 80.5257559394.

Adding to 522161 its reverse (161225), we get a palindrome (683386).

The spelling of 522161 in words is "five hundred twenty-two thousand, one hundred sixty-one".