142175 has 18 divisors (see below), whose sum is σ = 197904. Its totient is φ = 101200.
The previous prime is 142169. The next prime is 142183. The reversal of 142175 is 571241.
It is not a de Polignac number, because 142175 - 24 = 142159 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3002 + ... + 3048.
142175 is a Friedman number, since it can be written as 47*(11*5)^2, using all its digits and the basic arithmetic operations.
2142175 is an apocalyptic number.
142175 is a deficient number, since it is larger than the sum of its proper divisors (55729).
142175 is a wasteful number, since it uses less digits than its factorization.
142175 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 79 (or 63 counting only the distinct ones).
The product of its digits is 280, while the sum is 20.
The square root of 142175 is about 377.0610030221. The cubic root of 142175 is about 52.1924574276.
The spelling of 142175 in words is "one hundred forty-two thousand, one hundred seventy-five".
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