170117127 has 12 divisors (see below), whose sum is σ = 258657880. Its totient is φ = 107442288.

The previous prime is 170117117. The next prime is 170117137. The reversal of 170117127 is 721711071.

It is an interprime number because it is at equal distance from previous prime (170117117) and next prime (170117137).

It is a de Polignac number, because none of the positive numbers 2^k-170117127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 170117127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170117117) 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 11 ways as a sum of consecutive naturals, for example, 497248 + ... + 497589.

Almost surely, 2^170117127 is an apocalyptic number.

170117127 is a deficient number, since it is larger than the sum of its proper divisors (88540753).

170117127 is a wasteful number, since it uses less digits than its factorization.

170117127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994862 (or 994859 counting only the distinct ones).

The product of its (nonzero) digits is 686, while the sum is 27.

The square root of 170117127 is about 13042.8956524232. The cubic root of 170117127 is about 554.0930206942.

Adding to 170117127 its reverse (721711071), we get a palindrome (891828198).

The spelling of 170117127 in words is "one hundred seventy million, one hundred seventeen thousand, one hundred twenty-seven".