42575971 has 2 divisors, whose sum is σ = 42575972. Its totient is φ = 42575970.

The previous prime is 42575969. The next prime is 42576019. The reversal of 42575971 is 17957524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42575971 - 2¹ = 42575969 is a prime.

Together with 42575969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42575171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21287985 + 21287986.

It is an arithmetic number, because the mean of its divisors is an integer number (21287986).

Almost surely, 2^42575971 is an apocalyptic number.

42575971 is a deficient number, since it is larger than the sum of its proper divisors (1).

42575971 is an equidigital number, since it uses as much as digits as its factorization.

42575971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 40.

The square root of 42575971 is about 6525.0265133561. The cubic root of 42575971 is about 349.1844166189.

The spelling of 42575971 in words is "forty-two million, five hundred seventy-five thousand, nine hundred seventy-one".