22144169 has 2 divisors, whose sum is σ = 22144170. Its totient is φ = 22144168.

The previous prime is 22144117. The next prime is 22144181. The reversal of 22144169 is 96144122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16321600 + 5822569 = 4040^2 + 2413^2 .

It is a cyclic number.

It is not a de Polignac number, because 22144169 - 2¹⁶ = 22078633 is a prime.

It is a super-2 number, since 2×22144169² = 980728441401122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22144189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072084 + 11072085.

It is an arithmetic number, because the mean of its divisors is an integer number (11072085).

Almost surely, 2^22144169 is an apocalyptic number.

It is an amenable number.

22144169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22144169 is an equidigital number, since it uses as much as digits as its factorization.

22144169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 22144169 is about 4705.7591311073. The cubic root of 22144169 is about 280.8146724435.

The spelling of 22144169 in words is "twenty-two million, one hundred forty-four thousand, one hundred sixty-nine".