815241912 has 32 divisors (see below), whose sum is σ = 2038848000. Its totient is φ = 271648224.

The previous prime is 815241901. The next prime is 815241929. The reversal of 815241912 is 219142518.

815241912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94233 + ... + 102519.

It is an arithmetic number, because the mean of its divisors is an integer number (63714000).

Almost surely, 2^815241912 is an apocalyptic number.

It is an amenable number.

815241912 is an abundant number, since it is smaller than the sum of its proper divisors (1223606088).

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

815241912 is a wasteful number, since it uses less digits than its factorization.

815241912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12395 (or 12391 counting only the distinct ones).

The product of its digits is 5760, while the sum is 33.

The square root of 815241912 is about 28552.4414367668. The cubic root of 815241912 is about 934.1762739560.

It can be divided in two parts, 81524 and 1912, that added together give a triangular number (83436 = T₄₀₈).

The spelling of 815241912 in words is "eight hundred fifteen million, two hundred forty-one thousand, nine hundred twelve".