42130133 has 2 divisors, whose sum is σ = 42130134. Its totient is φ = 42130132.

The previous prime is 42130117. The next prime is 42130139. The reversal of 42130133 is 33103124.

It is a happy number.

42130133 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., 41964484 + 165649 = 6478^2 + 407^2 .

It is a cyclic number.

It is not a de Polignac number, because 42130133 - 2⁴ = 42130117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42130139) 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, 21065066 + 21065067.

It is an arithmetic number, because the mean of its divisors is an integer number (21065067).

Almost surely, 2^42130133 is an apocalyptic number.

It is an amenable number.

42130133 is a deficient number, since it is larger than the sum of its proper divisors (1).

42130133 is an equidigital number, since it uses as much as digits as its factorization.

42130133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 42130133 is about 6490.7729123734. The cubic root of 42130133 is about 347.9612989287.

Adding to 42130133 its reverse (33103124), we get a palindrome (75233257).

The spelling of 42130133 in words is "forty-two million, one hundred thirty thousand, one hundred thirty-three".