22423169 has 2 divisors, whose sum is σ = 22423170. Its totient is φ = 22423168.

The previous prime is 22423133. The next prime is 22423207. The reversal of 22423169 is 96132422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19492225 + 2930944 = 4415^2 + 1712^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22423169 is a prime.

It is a super-2 number, since 2×22423169² = 1005597016005122, 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 (22423469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11211584 + 11211585.

It is an arithmetic number, because the mean of its divisors is an integer number (11211585).

Almost surely, 2^22423169 is an apocalyptic number.

It is an amenable number.

22423169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22423169 is an equidigital number, since it uses as much as digits as its factorization.

22423169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 22423169 is about 4735.3108662473. The cubic root of 22423169 is about 281.9891055932.

The spelling of 22423169 in words is "twenty-two million, four hundred twenty-three thousand, one hundred sixty-nine".