42229169 has 2 divisors, whose sum is σ = 42229170. Its totient is φ = 42229168.

The previous prime is 42229163. The next prime is 42229189. The reversal of 42229169 is 96192224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26388769 + 15840400 = 5137^2 + 3980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42229169 is a prime.

It is a super-2 number, since 2×42229169² = 3566605428861122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42229163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21114584 + 21114585.

It is an arithmetic number, because the mean of its divisors is an integer number (21114585).

Almost surely, 2^42229169 is an apocalyptic number.

It is an amenable number.

42229169 is a deficient number, since it is larger than the sum of its proper divisors (1).

42229169 is an equidigital number, since it uses as much as digits as its factorization.

42229169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 42229169 is about 6498.3974178254. The cubic root of 42229169 is about 348.2337383564.

The spelling of 42229169 in words is "forty-two million, two hundred twenty-nine thousand, one hundred sixty-nine".