42881171 has 4 divisors (see below), whose sum is σ = 42900600. Its totient is φ = 42861744.

The previous prime is 42881159. The next prime is 42881183. The reversal of 42881171 is 17118824.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42881159) and next prime (42881183).

It is a cyclic number.

It is not a de Polignac number, because 42881171 - 2¹⁰ = 42880147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42881101) 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 in 3 ways as a sum of consecutive naturals, for example, 5906 + ... + 10983.

It is an arithmetic number, because the mean of its divisors is an integer number (10725150).

Almost surely, 2^42881171 is an apocalyptic number.

42881171 is a deficient number, since it is larger than the sum of its proper divisors (19429).

42881171 is a wasteful number, since it uses less digits than its factorization.

42881171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19428.

The product of its digits is 3584, while the sum is 32.

The square root of 42881171 is about 6548.3716296496. The cubic root of 42881171 is about 350.0167910312.

Adding to 42881171 its reverse (17118824), we get a palindrome (59999995).

The spelling of 42881171 in words is "forty-two million, eight hundred eighty-one thousand, one hundred seventy-one".