1080000081 has 8 divisors (see below), whose sum is σ = 1600000160. Its totient is φ = 720000036.

The previous prime is 1080000023. The next prime is 1080000091. The reversal of 1080000081 is 1800000801.

It is a happy number.

It is not a de Polignac number, because 1080000081 - 2¹⁰ = 1079999057 is a prime.

It is a super-2 number, since 2×1080000081² = 2332800349920013122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1080000091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19999975 + ... + 20000028.

It is an arithmetic number, because the mean of its divisors is an integer number (200000020).

Almost surely, 2^1080000081 is an apocalyptic number.

It is an amenable number.

1080000081 is a deficient number, since it is larger than the sum of its proper divisors (520000079).

1080000081 is an equidigital number, since it uses as much as digits as its factorization.

1080000081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40000012 (or 40000006 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 1080000081 is about 32863.3546826857. The cubic root of 1080000081 is about 1025.9855936557.

Adding to 1080000081 its reverse (1800000801), we get a palindrome (2880000882).

The spelling of 1080000081 in words is "one billion, eighty million, eighty-one", and thus it is an aban number and an uban number.