42173127 has 6 divisors (see below), whose sum is σ = 60916752. Its totient is φ = 28115412.

The previous prime is 42173111. The next prime is 42173129. The reversal of 42173127 is 72137124.

It is a happy number.

It is not a de Polignac number, because 42173127 - 2⁴ = 42173111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42173127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42173129) 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 5 ways as a sum of consecutive naturals, for example, 2342943 + ... + 2342960.

It is an arithmetic number, because the mean of its divisors is an integer number (10152792).

Almost surely, 2^42173127 is an apocalyptic number.

42173127 is a deficient number, since it is larger than the sum of its proper divisors (18743625).

42173127 is a wasteful number, since it uses less digits than its factorization.

42173127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685909 (or 4685906 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 42173127 is about 6494.0840000727. The cubic root of 42173127 is about 348.0796240712.

The spelling of 42173127 in words is "forty-two million, one hundred seventy-three thousand, one hundred twenty-seven".