42535169 has 2 divisors, whose sum is σ = 42535170. Its totient is φ = 42535168.

The previous prime is 42535153. The next prime is 42535187. The reversal of 42535169 is 96153524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23280625 + 19254544 = 4825^2 + 4388^2 .

It is a cyclic number.

It is not a de Polignac number, because 42535169 - 2⁴ = 42535153 is a prime.

It is a super-2 number, since 2×42535169² = 3618481203717122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42535369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21267584 + 21267585.

It is an arithmetic number, because the mean of its divisors is an integer number (21267585).

Almost surely, 2^42535169 is an apocalyptic number.

It is an amenable number.

42535169 is a deficient number, since it is larger than the sum of its proper divisors (1).

42535169 is an equidigital number, since it uses as much as digits as its factorization.

42535169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 35.

The square root of 42535169 is about 6521.8991865867. The cubic root of 42535169 is about 349.0728358695.

The spelling of 42535169 in words is "forty-two million, five hundred thirty-five thousand, one hundred sixty-nine".