42171175 has 12 divisors (see below), whose sum is σ = 53509720. Its totient is φ = 32951520.

The previous prime is 42171163. The next prime is 42171179. The reversal of 42171175 is 57117124.

It is not a de Polignac number, because 42171175 - 2⁷ = 42171047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42171179) 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, 18540 + ... + 20689.

Almost surely, 2^42171175 is an apocalyptic number.

42171175 is a deficient number, since it is larger than the sum of its proper divisors (11338545).

42171175 is a wasteful number, since it uses less digits than its factorization.

42171175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39282 (or 39277 counting only the distinct ones).

The product of its digits is 1960, while the sum is 28.

The square root of 42171175 is about 6493.9337076998. The cubic root of 42171175 is about 348.0742536536.

Adding to 42171175 its reverse (57117124), we get a palindrome (99288299).

The spelling of 42171175 in words is "forty-two million, one hundred seventy-one thousand, one hundred seventy-five".