42415271 has 2 divisors, whose sum is σ = 42415272. Its totient is φ = 42415270.

The previous prime is 42415267. The next prime is 42415273. The reversal of 42415271 is 17251424.

42415271 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 42415271 - 2² = 42415267 is a prime.

It is a super-3 number, since 3×42415271³ (a number of 24 digits) contains 333 as substring.

Together with 42415273, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42415271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42415273) 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, 21207635 + 21207636.

It is an arithmetic number, because the mean of its divisors is an integer number (21207636).

Almost surely, 2^42415271 is an apocalyptic number.

42415271 is a deficient number, since it is larger than the sum of its proper divisors (1).

42415271 is an equidigital number, since it uses as much as digits as its factorization.

42415271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 26.

The square root of 42415271 is about 6512.7007454665. The cubic root of 42415271 is about 348.7445387393.

Adding to 42415271 its reverse (17251424), we get a palindrome (59666695).

The spelling of 42415271 in words is "forty-two million, four hundred fifteen thousand, two hundred seventy-one".