811013365 has 4 divisors (see below), whose sum is σ = 973216044. Its totient is φ = 648810688.

The previous prime is 811013353. The next prime is 811013369. The reversal of 811013365 is 563310118.

811013365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146095569 + 664917796 = 12087^2 + 25786^2 .

It is a cyclic number.

It is not a de Polignac number, because 811013365 - 2¹¹ = 811011317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811013369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81101332 + ... + 81101341.

It is an arithmetic number, because the mean of its divisors is an integer number (243304011).

Almost surely, 2^811013365 is an apocalyptic number.

It is an amenable number.

811013365 is a deficient number, since it is larger than the sum of its proper divisors (162202679).

811013365 is a wasteful number, since it uses less digits than its factorization.

811013365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162202678.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 811013365 is about 28478.2963851421. The cubic root of 811013365 is about 932.5583256721.

The spelling of 811013365 in words is "eight hundred eleven million, thirteen thousand, three hundred sixty-five".