171311142 has 16 divisors (see below), whose sum is σ = 362776752. Its totient is φ = 53744640.

The previous prime is 171311123. The next prime is 171311171. The reversal of 171311142 is 241113171.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839659 + ... + 839862.

It is an arithmetic number, because the mean of its divisors is an integer number (22673547).

Almost surely, 2^171311142 is an apocalyptic number.

171311142 is an abundant number, since it is smaller than the sum of its proper divisors (191465610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171311142 is a wasteful number, since it uses less digits than its factorization.

171311142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679543.

The product of its digits is 168, while the sum is 21.

The square root of 171311142 is about 13088.5882355585. The cubic root of 171311142 is about 555.3863522020.

The spelling of 171311142 in words is "one hundred seventy-one million, three hundred eleven thousand, one hundred forty-two".