42169223 has 2 divisors, whose sum is σ = 42169224. Its totient is φ = 42169222.

The previous prime is 42169201. The next prime is 42169249. The reversal of 42169223 is 32296124.

42169223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42169223 - 2¹⁰ = 42168199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42159223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21084611 + 21084612.

It is an arithmetic number, because the mean of its divisors is an integer number (21084612).

Almost surely, 2^42169223 is an apocalyptic number.

42169223 is a deficient number, since it is larger than the sum of its proper divisors (1).

42169223 is an equidigital number, since it uses as much as digits as its factorization.

42169223 is an odious number, because the sum of its binary digits is odd.

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

The square root of 42169223 is about 6493.7834118486. The cubic root of 42169223 is about 348.0688830703.

The spelling of 42169223 in words is "forty-two million, one hundred sixty-nine thousand, two hundred twenty-three".