80173 has 2 divisors, whose sum is σ = 80174. Its totient is φ = 80172.
The previous prime is 80167. The next prime is 80177. The reversal of 80173 is 37108.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 58564 + 21609 = 242^2 + 147^2 .
It is a cyclic number.
It is not a de Polignac number, because 80173 - 25 = 80141 is a prime.
It is a plaindrome in base 8.
It is a self number, because there is not a number n which added to its sum of digits gives 80173.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80177) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40086 + 40087.
It is an arithmetic number, because the mean of its divisors is an integer number (40087).
280173 is an apocalyptic number.
It is an amenable number.
80173 is a deficient number, since it is larger than the sum of its proper divisors (1).
80173 is an equidigital number, since it uses as much as digits as its factorization.
80173 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 168, while the sum is 19.
The square root of 80173 is about 283.1483710001. The cubic root of 80173 is about 43.1197312054.
It can be divided in two parts, 80 and 173, that added together give a triangular number (253 = T22).
The spelling of 80173 in words is "eighty thousand, one hundred seventy-three".
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