815212 has 12 divisors (see below), whose sum is σ = 1488816. Its totient is φ = 389840.

The previous prime is 815209. The next prime is 815231. The reversal of 815212 is 212518.

It is a self number, because there is not a number n which added to its sum of digits gives 815212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4339 + ... + 4522.

It is an arithmetic number, because the mean of its divisors is an integer number (124068).

2⁸¹⁵²¹² is an apocalyptic number.

It is an amenable number.

815212 is a deficient number, since it is larger than the sum of its proper divisors (673604).

815212 is a wasteful number, since it uses less digits than its factorization.

815212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8888 (or 8886 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 815212 is about 902.8909125692. The cubic root of 815212 is about 93.4164848545.

The spelling of 815212 in words is "eight hundred fifteen thousand, two hundred twelve".