42331133 has 8 divisors (see below), whose sum is σ = 46335576. Its totient is φ = 38433600.

The previous prime is 42331117. The next prime is 42331141. The reversal of 42331133 is 33113324.

It can be written as a sum of positive squares in 4 ways, for example, as 3928324 + 38402809 = 1982^2 + 6197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42331133 - 2⁴ = 42331117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42331103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25898 + ... + 27483.

It is an arithmetic number, because the mean of its divisors is an integer number (5791947).

Almost surely, 2^42331133 is an apocalyptic number.

It is an amenable number.

42331133 is a deficient number, since it is larger than the sum of its proper divisors (4004443).

42331133 is a wasteful number, since it uses less digits than its factorization.

42331133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53455.

The product of its digits is 648, while the sum is 20.

The square root of 42331133 is about 6506.2380067132. The cubic root of 42331133 is about 348.5137877952.

Adding to 42331133 its reverse (33113324), we get a palindrome (75444457).

The spelling of 42331133 in words is "forty-two million, three hundred thirty-one thousand, one hundred thirty-three".