42235471 has 2 divisors, whose sum is σ = 42235472. Its totient is φ = 42235470.

The previous prime is 42235451. The next prime is 42235481. The reversal of 42235471 is 17453224.

42235471 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 is a cyclic number.

It is not a de Polignac number, because 42235471 - 2⁵ = 42235439 is a prime.

It is a super-3 number, since 3×42235471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42235411) 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, 21117735 + 21117736.

It is an arithmetic number, because the mean of its divisors is an integer number (21117736).

Almost surely, 2^42235471 is an apocalyptic number.

42235471 is a deficient number, since it is larger than the sum of its proper divisors (1).

42235471 is an equidigital number, since it uses as much as digits as its factorization.

42235471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 28.

The square root of 42235471 is about 6498.8822885170. The cubic root of 42235471 is about 348.2510601895.

Adding to 42235471 its reverse (17453224), we get a palindrome (59688695).

The spelling of 42235471 in words is "forty-two million, two hundred thirty-five thousand, four hundred seventy-one".