42866171 has 2 divisors, whose sum is σ = 42866172. Its totient is φ = 42866170.

The previous prime is 42866137. The next prime is 42866221. The reversal of 42866171 is 17166824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42866171 - 2¹⁴ = 42849787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42866471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21433085 + 21433086.

It is an arithmetic number, because the mean of its divisors is an integer number (21433086).

Almost surely, 2^42866171 is an apocalyptic number.

42866171 is a deficient number, since it is larger than the sum of its proper divisors (1).

42866171 is an equidigital number, since it uses as much as digits as its factorization.

42866171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 42866171 is about 6547.2262065702. The cubic root of 42866171 is about 349.9759738609.

The spelling of 42866171 in words is "forty-two million, eight hundred sixty-six thousand, one hundred seventy-one".