172143 has 12 divisors (see below), whose sum is σ = 257088. Its totient is φ = 110880.

The previous prime is 172127. The next prime is 172147. The reversal of 172143 is 341271.

172143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172143 - 2⁴ = 172127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30 + ... + 587.

It is an arithmetic number, because the mean of its divisors is an integer number (21424).

2¹⁷²¹⁴³ is an apocalyptic number.

172143 is a deficient number, since it is larger than the sum of its proper divisors (84945).

172143 is a wasteful number, since it uses less digits than its factorization.

172143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 651 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 172143 is about 414.9011930569. The cubic root of 172143 is about 55.6283855197.

It can be divided in two parts, 1721 and 43, that added together give a square (1764 = 42²).

The spelling of 172143 in words is "one hundred seventy-two thousand, one hundred forty-three", and thus it is an iban number.