812481522 has 16 divisors (see below), whose sum is σ = 1644541920. Its totient is φ = 267564032.

The previous prime is 812481521. The next prime is 812481529. The reversal of 812481522 is 225184218.

It is not an unprimeable number, because it can be changed into a prime (812481521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815247 + ... + 816242.

It is an arithmetic number, because the mean of its divisors is an integer number (102783870).

Almost surely, 2^812481522 is an apocalyptic number.

812481522 is an abundant number, since it is smaller than the sum of its proper divisors (832060398).

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

812481522 is a wasteful number, since it uses less digits than its factorization.

812481522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631577.

The product of its digits is 10240, while the sum is 33.

The square root of 812481522 is about 28504.0615000740. The cubic root of 812481522 is about 933.1207153721.

The spelling of 812481522 in words is "eight hundred twelve million, four hundred eighty-one thousand, five hundred twenty-two".