810845134 has 16 divisors (see below), whose sum is σ = 1345527936. Its totient is φ = 363374200.

The previous prime is 810845111. The next prime is 810845153. The reversal of 810845134 is 431548018.

It is a self number, because there is not a number n which added to its sum of digits gives 810845134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257992 + ... + 261115.

It is an arithmetic number, because the mean of its divisors is an integer number (84095496).

Almost surely, 2^810845134 is an apocalyptic number.

810845134 is a deficient number, since it is larger than the sum of its proper divisors (534682802).

810845134 is a wasteful number, since it uses less digits than its factorization.

810845134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519191.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 810845134 is about 28475.3425615918. The cubic root of 810845134 is about 932.4938400645.

The spelling of 810845134 in words is "eight hundred ten million, eight hundred forty-five thousand, one hundred thirty-four".