42031171 has 12 divisors (see below), whose sum is σ = 52655232. Its totient is φ = 33254928.

The previous prime is 42031159. The next prime is 42031181. The reversal of 42031171 is 17113024.

It is not a de Polignac number, because 42031171 - 2⁵ = 42031139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42031111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32355 + ... + 33628.

It is an arithmetic number, because the mean of its divisors is an integer number (4387936).

Almost surely, 2^42031171 is an apocalyptic number.

42031171 is a deficient number, since it is larger than the sum of its proper divisors (10624061).

42031171 is a wasteful number, since it uses less digits than its factorization.

42031171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66010 (or 66003 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 42031171 is about 6483.1451472260. The cubic root of 42031171 is about 347.6886362606.

Adding to 42031171 its reverse (17113024), we get a palindrome (59144195).

The spelling of 42031171 in words is "forty-two million, thirty-one thousand, one hundred seventy-one".