171163138 has 8 divisors (see below), whose sum is σ = 259994880. Its totient is φ = 84498180.

The previous prime is 171163117. The next prime is 171163163. The reversal of 171163138 is 831361171.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541498 + ... + 541813.

It is an arithmetic number, because the mean of its divisors is an integer number (32499360).

Almost surely, 2^171163138 is an apocalyptic number.

171163138 is a deficient number, since it is larger than the sum of its proper divisors (88831742).

171163138 is a wasteful number, since it uses less digits than its factorization.

171163138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083392.

The product of its digits is 3024, while the sum is 31.

The square root of 171163138 is about 13082.9330809265. The cubic root of 171163138 is about 555.2263643886.

The spelling of 171163138 in words is "one hundred seventy-one million, one hundred sixty-three thousand, one hundred thirty-eight".