171373143 has 4 divisors (see below), whose sum is σ = 228497528. Its totient is φ = 114248760.

The previous prime is 171373133. The next prime is 171373157. The reversal of 171373143 is 341373171.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 171373143 - 2⁶ = 171373079 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 171373143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171373123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28562188 + ... + 28562193.

It is an arithmetic number, because the mean of its divisors is an integer number (57124382).

Almost surely, 2^171373143 is an apocalyptic number.

171373143 is a deficient number, since it is larger than the sum of its proper divisors (57124385).

171373143 is an equidigital number, since it uses as much as digits as its factorization.

171373143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57124384.

The product of its digits is 5292, while the sum is 30.

The square root of 171373143 is about 13090.9565349519. The cubic root of 171373143 is about 555.4533460073.

The spelling of 171373143 in words is "one hundred seventy-one million, three hundred seventy-three thousand, one hundred forty-three".