813016263 has 4 divisors (see below), whose sum is σ = 1084021688. Its totient is φ = 542010840.

The previous prime is 813016249. The next prime is 813016271. The reversal of 813016263 is 362610318.

813016263 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 is not a de Polignac number, because 813016263 - 2⁵ = 813016231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 813016263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813016223) 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, 135502708 + ... + 135502713.

It is an arithmetic number, because the mean of its divisors is an integer number (271005422).

Almost surely, 2^813016263 is an apocalyptic number.

813016263 is a deficient number, since it is larger than the sum of its proper divisors (271005425).

813016263 is a wasteful number, since it uses less digits than its factorization.

813016263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271005424.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 813016263 is about 28513.4400414962. The cubic root of 813016263 is about 933.3253840168.

The spelling of 813016263 in words is "eight hundred thirteen million, sixteen thousand, two hundred sixty-three".