80115 has 24 divisors (see below), whose sum is σ = 150480. Its totient is φ = 36288.
The previous prime is 80111. The next prime is 80141. The reversal of 80115 is 51108.
It is a happy number.
It is not a de Polignac number, because 80115 - 22 = 80111 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a junction number, because it is equal to n+sod(n) for n = 80094 and 80103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80111) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 681 + ... + 789.
It is an arithmetic number, because the mean of its divisors is an integer number (6270).
280115 is an apocalyptic number.
80115 is a deficient number, since it is larger than the sum of its proper divisors (70365).
80115 is a wasteful number, since it uses less digits than its factorization.
80115 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 131 (or 124 counting only the distinct ones).
The product of its (nonzero) digits is 40, while the sum is 15.
The square root of 80115 is about 283.0459326682. The cubic root of 80115 is about 43.1093305811.
The spelling of 80115 in words is "eighty thousand, one hundred fifteen".
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