42169133 has 2 divisors, whose sum is σ = 42169134. Its totient is φ = 42169132.

The previous prime is 42169093. The next prime is 42169139. The reversal of 42169133 is 33196124.

42169133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40998409 + 1170724 = 6403^2 + 1082^2 .

It is a cyclic number.

It is not a de Polignac number, because 42169133 - 2⁸ = 42168877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42169096 and 42169105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42169139) 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, 21084566 + 21084567.

It is an arithmetic number, because the mean of its divisors is an integer number (21084567).

Almost surely, 2^42169133 is an apocalyptic number.

It is an amenable number.

42169133 is a deficient number, since it is larger than the sum of its proper divisors (1).

42169133 is an equidigital number, since it uses as much as digits as its factorization.

42169133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 42169133 is about 6493.7764821404. The cubic root of 42169133 is about 348.0686354472.

The spelling of 42169133 in words is "forty-two million, one hundred sixty-nine thousand, one hundred thirty-three".