810112 has 16 divisors (see below), whose sum is σ = 1614150. Its totient is φ = 404992.

The previous prime is 810109. The next prime is 810137. The reversal of 810112 is 211018.

It can be written as a sum of positive squares in only one way, i.e., 602176 + 207936 = 776^2 + 456^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a zygodrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 810092 and 810101.

It is an unprimeable number.

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, 3037 + ... + 3292.

2⁸¹⁰¹¹² is an apocalyptic number.

It is an amenable number.

810112 is a deficient number, since it is larger than the sum of its proper divisors (804038).

810112 is an equidigital number, since it uses as much as digits as its factorization.

810112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6343 (or 6331 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 810112 is about 900.0622200715. The cubic root of 810112 is about 93.2212714009.

The spelling of 810112 in words is "eight hundred ten thousand, one hundred twelve".