810113523 has 4 divisors (see below), whose sum is σ = 1080151368. Its totient is φ = 540075680.

The previous prime is 810113509. The next prime is 810113527. The reversal of 810113523 is 325311018.

810113523 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 a cyclic number.

It is not a de Polignac number, because 810113523 - 2⁶ = 810113459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 810113493 and 810113502.

It is not an unprimeable number, because it can be changed into a prime (810113527) 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, 135018918 + ... + 135018923.

It is an arithmetic number, because the mean of its divisors is an integer number (270037842).

Almost surely, 2^810113523 is an apocalyptic number.

810113523 is a deficient number, since it is larger than the sum of its proper divisors (270037845).

810113523 is a wasteful number, since it uses less digits than its factorization.

810113523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270037844.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 810113523 is about 28462.4932674564. The cubic root of 810113523 is about 932.2132981908.

The spelling of 810113523 in words is "eight hundred ten million, one hundred thirteen thousand, five hundred twenty-three".