171982115 has 16 divisors (see below), whose sum is σ = 219876768. Its totient is φ = 128687616.

The previous prime is 171982103. The next prime is 171982121. The reversal of 171982115 is 511289171.

It is a cyclic number.

It is not a de Polignac number, because 171982115 - 2⁶ = 171982051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7649 + ... + 20061.

It is an arithmetic number, because the mean of its divisors is an integer number (13742298).

Almost surely, 2^171982115 is an apocalyptic number.

171982115 is a deficient number, since it is larger than the sum of its proper divisors (47894653).

171982115 is a wasteful number, since it uses less digits than its factorization.

171982115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12598.

The product of its digits is 5040, while the sum is 35.

The square root of 171982115 is about 13114.1951716451. The cubic root of 171982115 is about 556.1105000517.

The spelling of 171982115 in words is "one hundred seventy-one million, nine hundred eighty-two thousand, one hundred fifteen".