42631171 has 8 divisors (see below), whose sum is σ = 46919664. Its totient is φ = 38411520.

The previous prime is 42631163. The next prime is 42631181. The reversal of 42631171 is 17113624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42631171 - 2³ = 42631163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42631151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15906 + ... + 18391.

It is an arithmetic number, because the mean of its divisors is an integer number (5864958).

Almost surely, 2^42631171 is an apocalyptic number.

42631171 is a deficient number, since it is larger than the sum of its proper divisors (4288493).

42631171 is a wasteful number, since it uses less digits than its factorization.

42631171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34421.

The product of its digits is 1008, while the sum is 25.

The square root of 42631171 is about 6529.2550111020. The cubic root of 42631171 is about 349.3352580074.

Adding to 42631171 its reverse (17113624), we get a palindrome (59744795).

The spelling of 42631171 in words is "forty-two million, six hundred thirty-one thousand, one hundred seventy-one".