171143143 has 8 divisors (see below), whose sum is σ = 175489776. Its totient is φ = 166804800.

The previous prime is 171143117. The next prime is 171143149. The reversal of 171143143 is 341341171.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 171143143 - 2¹⁷ = 171012071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171143149) 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, 75180 + ... + 77422.

It is an arithmetic number, because the mean of its divisors is an integer number (21936222).

Almost surely, 2^171143143 is an apocalyptic number.

171143143 is a deficient number, since it is larger than the sum of its proper divisors (4346633).

171143143 is a wasteful number, since it uses less digits than its factorization.

171143143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145.

The product of its digits is 1008, while the sum is 25.

The square root of 171143143 is about 13082.1688951030. The cubic root of 171143143 is about 555.2047433324.

The spelling of 171143143 in words is "one hundred seventy-one million, one hundred forty-three thousand, one hundred forty-three".