171172112127 has 8 divisors (see below), whose sum is σ = 240241560960. Its totient is φ = 108108702360.

The previous prime is 171172112123. The next prime is 171172112161. The reversal of 171172112127 is 721211271171.

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

It is not a de Polignac number, because 171172112127 - 2² = 171172112123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171172112123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501509699 + ... + 1501509812.

It is an arithmetic number, because the mean of its divisors is an integer number (30030195120).

Almost surely, 2^171172112127 is an apocalyptic number.

171172112127 is a deficient number, since it is larger than the sum of its proper divisors (69069448833).

171172112127 is a wasteful number, since it uses less digits than its factorization.

171172112127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003019533.

The product of its digits is 2744, while the sum is 33.

Adding to 171172112127 its reverse (721211271171), we get a palindrome (892383383298).

The spelling of 171172112127 in words is "one hundred seventy-one billion, one hundred seventy-two million, one hundred twelve thousand, one hundred twenty-seven".