171056 has 10 divisors (see below), whose sum is σ = 331452. Its totient is φ = 85520.
The previous prime is 171053. The next prime is 171077. The reversal of 171056 is 650171.
It is not an unprimeable number, because it can be changed into a prime (171053) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5330 + ... + 5361.
2171056 is an apocalyptic number.
171056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
171056 is a deficient number, since it is larger than the sum of its proper divisors (160396).
171056 is a wasteful number, since it uses less digits than its factorization.
171056 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10699 (or 10693 counting only the distinct ones).
The product of its (nonzero) digits is 210, while the sum is 20.
The square root of 171056 is about 413.5891681367. The cubic root of 171056 is about 55.5110493922.
The spelling of 171056 in words is "one hundred seventy-one thousand, fifty-six".
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