22168169 has 2 divisors, whose sum is σ = 22168170. Its totient is φ = 22168168.

The previous prime is 22168147. The next prime is 22168189. The reversal of 22168169 is 96186122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16933225 + 5234944 = 4115^2 + 2288^2 .

It is a cyclic number.

It is not a de Polignac number, because 22168169 - 2⁸ = 22167913 is a prime.

It is a super-2 number, since 2×22168169² = 982855433625122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22168109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11084084 + 11084085.

It is an arithmetic number, because the mean of its divisors is an integer number (11084085).

Almost surely, 2^22168169 is an apocalyptic number.

It is an amenable number.

22168169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22168169 is an equidigital number, since it uses as much as digits as its factorization.

22168169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

The square root of 22168169 is about 4708.3085073092. The cubic root of 22168169 is about 280.9160854281.

The spelling of 22168169 in words is "twenty-two million, one hundred sixty-eight thousand, one hundred sixty-nine".