42271069 has 2 divisors, whose sum is σ = 42271070. Its totient is φ = 42271068.

The previous prime is 42271063. The next prime is 42271121. The reversal of 42271069 is 96017224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34222500 + 8048569 = 5850^2 + 2837^2 .

It is a cyclic number.

It is not a de Polignac number, because 42271069 - 2¹³ = 42262877 is a prime.

It is a super-3 number, since 3×42271069³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 42271069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42271063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21135534 + 21135535.

It is an arithmetic number, because the mean of its divisors is an integer number (21135535).

Almost surely, 2^42271069 is an apocalyptic number.

It is an amenable number.

42271069 is a deficient number, since it is larger than the sum of its proper divisors (1).

42271069 is an equidigital number, since it uses as much as digits as its factorization.

42271069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 42271069 is about 6501.6204903086. The cubic root of 42271069 is about 348.3488733913.

The spelling of 42271069 in words is "forty-two million, two hundred seventy-one thousand, sixty-nine".