815132892 has 96 divisors (see below), whose sum is σ = 2215747072. Its totient is φ = 228427776.

The previous prime is 815132869. The next prime is 815132909. The reversal of 815132892 is 298231518.

815132892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 815132892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1882308 + ... + 1882740.

Almost surely, 2^815132892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 815132892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1107873536).

815132892 is an abundant number, since it is smaller than the sum of its proper divisors (1400614180).

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

815132892 is a wasteful number, since it uses less digits than its factorization.

815132892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 825 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 815132892 is about 28550.5322542330. The cubic root of 815132892 is about 934.1346305141.

The spelling of 815132892 in words is "eight hundred fifteen million, one hundred thirty-two thousand, eight hundred ninety-two".