42231733 has 2 divisors, whose sum is σ = 42231734. Its totient is φ = 42231732.

The previous prime is 42231713. The next prime is 42231767. The reversal of 42231733 is 33713224.

42231733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39853969 + 2377764 = 6313^2 + 1542^2 .

It is a cyclic number.

It is not a de Polignac number, because 42231733 - 2⁵ = 42231701 is a prime.

It is equal to p_2560840 and since 42231733 and 2560840 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 42231698 and 42231707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42231713) 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, 21115866 + 21115867.

It is an arithmetic number, because the mean of its divisors is an integer number (21115867).

Almost surely, 2^42231733 is an apocalyptic number.

It is an amenable number.

42231733 is a deficient number, since it is larger than the sum of its proper divisors (1).

42231733 is an equidigital number, since it uses as much as digits as its factorization.

42231733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 25.

The square root of 42231733 is about 6498.5946942397. The cubic root of 42231733 is about 348.2407860382.

Adding to 42231733 its reverse (33713224), we get a palindrome (75944957).

The spelling of 42231733 in words is "forty-two million, two hundred thirty-one thousand, seven hundred thirty-three".