142173 has 6 divisors (see below), whose sum is σ = 205374. Its totient is φ = 94776.

The previous prime is 142169. The next prime is 142183. The reversal of 142173 is 371241.

It can be written as a sum of positive squares in only one way, i.e., 131769 + 10404 = 363^2 + 102^2 .

It is not a de Polignac number, because 142173 - 2² = 142169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7890 + ... + 7907.

It is an arithmetic number, because the mean of its divisors is an integer number (34229).

2¹⁴²¹⁷³ is an apocalyptic number.

It is an amenable number.

142173 is a deficient number, since it is larger than the sum of its proper divisors (63201).

142173 is a wasteful number, since it uses less digits than its factorization.

142173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15803 (or 15800 counting only the distinct ones).

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

The square root of 142173 is about 377.0583509220. The cubic root of 142173 is about 52.1922126931.

It can be divided in two parts, 14 and 2173, that added together give a 7-th power (2187 = 3⁷).

The spelling of 142173 in words is "one hundred forty-two thousand, one hundred seventy-three", and thus it is an iban number.