42585143 has 2 divisors, whose sum is σ = 42585144. Its totient is φ = 42585142.

The previous prime is 42585139. The next prime is 42585163. The reversal of 42585143 is 34158524.

42585143 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 is a cyclic number.

It is not a de Polignac number, because 42585143 - 2² = 42585139 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42585163) 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, 21292571 + 21292572.

It is an arithmetic number, because the mean of its divisors is an integer number (21292572).

Almost surely, 2^42585143 is an apocalyptic number.

42585143 is a deficient number, since it is larger than the sum of its proper divisors (1).

42585143 is an equidigital number, since it uses as much as digits as its factorization.

42585143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 32.

The square root of 42585143 is about 6525.7293079011. The cubic root of 42585143 is about 349.2094893648.

The spelling of 42585143 in words is "forty-two million, five hundred eighty-five thousand, one hundred forty-three".