813041312 has 36 divisors (see below), whose sum is σ = 1689379146. Its totient is φ = 385119360.

The previous prime is 813041231. The next prime is 813041387. The reversal of 813041312 is 213140318.

It can be written as a sum of positive squares in only one way, i.e., 744416656 + 68624656 = 27284^2 + 8284^2 .

It is a super-2 number, since 2×813041312² = 1322072350037362688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23639 + ... + 46742.

Almost surely, 2^813041312 is an apocalyptic number.

It is an amenable number.

813041312 is an abundant number, since it is smaller than the sum of its proper divisors (876337834).

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

813041312 is a wasteful number, since it uses less digits than its factorization.

813041312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70429 (or 70402 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 813041312 is about 28513.8792871121. The cubic root of 813041312 is about 933.3349691581.

The spelling of 813041312 in words is "eight hundred thirteen million, forty-one thousand, three hundred twelve".