42342133 has 2 divisors, whose sum is σ = 42342134. Its totient is φ = 42342132.

The previous prime is 42342073. The next prime is 42342151. The reversal of 42342133 is 33124324.

It is a happy number.

42342133 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., 36687249 + 5654884 = 6057^2 + 2378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42342133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42348133) 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, 21171066 + 21171067.

It is an arithmetic number, because the mean of its divisors is an integer number (21171067).

Almost surely, 2^42342133 is an apocalyptic number.

It is an amenable number.

42342133 is a deficient number, since it is larger than the sum of its proper divisors (1).

42342133 is an equidigital number, since it uses as much as digits as its factorization.

42342133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 22.

The square root of 42342133 is about 6507.0832943801. The cubic root of 42342133 is about 348.5439729834.

Adding to 42342133 its reverse (33124324), we get a palindrome (75466457).

The spelling of 42342133 in words is "forty-two million, three hundred forty-two thousand, one hundred thirty-three".