42701171 has 2 divisors, whose sum is σ = 42701172. Its totient is φ = 42701170.

The previous prime is 42701149. The next prime is 42701173. The reversal of 42701171 is 17110724.

42701171 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 a de Polignac number, because none of the positive numbers 2^k-42701171 is a prime.

Together with 42701173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42701173) 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, 21350585 + 21350586.

It is an arithmetic number, because the mean of its divisors is an integer number (21350586).

Almost surely, 2^42701171 is an apocalyptic number.

42701171 is a deficient number, since it is larger than the sum of its proper divisors (1).

42701171 is an equidigital number, since it uses as much as digits as its factorization.

42701171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 42701171 is about 6534.6133014892. The cubic root of 42701171 is about 349.5263552379.

Adding to 42701171 its reverse (17110724), we get a palindrome (59811895).

The spelling of 42701171 in words is "forty-two million, seven hundred one thousand, one hundred seventy-one".