814913512 has 48 divisors (see below), whose sum is σ = 1793253060. Its totient is φ = 346139136.

The previous prime is 814913509. The next prime is 814913521. The reversal of 814913512 is 215319418.

It can be written as a sum of positive squares in 2 ways, for example, as 808492356 + 6421156 = 28434^2 + 2534^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35098 + ... + 53494.

Almost surely, 2^814913512 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 814913512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896626530).

814913512 is an abundant number, since it is smaller than the sum of its proper divisors (978339548).

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

814913512 is a wasteful number, since it uses less digits than its factorization.

814913512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18530 (or 18519 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 814913512 is about 28546.6900357992. The cubic root of 814913512 is about 934.0508205225.

The spelling of 814913512 in words is "eight hundred fourteen million, nine hundred thirteen thousand, five hundred twelve".