22456169 has 2 divisors, whose sum is σ = 22456170. Its totient is φ = 22456168.

The previous prime is 22456117. The next prime is 22456171. The reversal of 22456169 is 96165422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21949225 + 506944 = 4685^2 + 712^2 .

It is a cyclic number.

It is not a de Polignac number, because 22456169 - 2⁸ = 22455913 is a prime.

It is a super-2 number, since 2×22456169² = 1008559052313122, which contains 22 as substring.

Together with 22456171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22456199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11228084 + 11228085.

It is an arithmetic number, because the mean of its divisors is an integer number (11228085).

Almost surely, 2^22456169 is an apocalyptic number.

It is an amenable number.

22456169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22456169 is an equidigital number, since it uses as much as digits as its factorization.

22456169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 22456169 is about 4738.7940449021. The cubic root of 22456169 is about 282.1273714973.

The spelling of 22456169 in words is "twenty-two million, four hundred fifty-six thousand, one hundred sixty-nine".