1080081 has 16 divisors (see below), whose sum is σ = 1619200. Its totient is φ = 711504.
The previous prime is 1080077. The next prime is 1080083. The reversal of 1080081 is 1800801.
It is a happy number.
It is not a de Polignac number, because 1080081 - 22 = 1080077 is a prime.
It is a super-2 number, since 2×10800812 = 2333149933122, which contains 22 as substring.
It is an Ulam number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1080083) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2760 + ... + 3126.
It is an arithmetic number, because the mean of its divisors is an integer number (101200).
21080081 is an apocalyptic number.
It is an amenable number.
1080081 is a deficient number, since it is larger than the sum of its proper divisors (539119).
1080081 is a wasteful number, since it uses less digits than its factorization.
1080081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 485 (or 479 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 18.
The square root of 1080081 is about 1039.2694549538. The cubic root of 1080081 is about 102.6011217004.
Adding to 1080081 its reverse (1800801), we get a palindrome (2880882).
The spelling of 1080081 in words is "one million, eighty thousand, eighty-one".
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