815112 has 24 divisors (see below), whose sum is σ = 2207790. Its totient is φ = 271680.

The previous prime is 815063. The next prime is 815123. The reversal of 815112 is 211518.

It can be written as a sum of positive squares in only one way, i.e., 799236 + 15876 = 894^2 + 126^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 815112.

It is an unprimeable number.

815112 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5589 + ... + 5732.

2⁸¹⁵¹¹² is an apocalyptic number.

It is an amenable number.

815112 is an abundant number, since it is smaller than the sum of its proper divisors (1392678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

815112 is a wasteful number, since it uses less digits than its factorization.

815112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11333 (or 11326 counting only the distinct ones).

The product of its digits is 80, while the sum is 18.

The square root of 815112 is about 902.8355331953. The cubic root of 815112 is about 93.4126649767.

The spelling of 815112 in words is "eight hundred fifteen thousand, one hundred twelve".