810136000 has 56 divisors (see below), whose sum is σ = 2006321616. Its totient is φ = 324051200.

The previous prime is 810135947. The next prime is 810136007. The reversal of 810136000 is 631018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810136007) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 42634 + ... + 58633.

Almost surely, 2^810136000 is an apocalyptic number.

810136000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

810136000 is an abundant number, since it is smaller than the sum of its proper divisors (1196185616).

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

810136000 is a wasteful number, since it uses less digits than its factorization.

810136000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101294 (or 101274 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 810136000 is about 28462.8881176876. Note that the first 3 decimals coincide. The cubic root of 810136000 is about 932.2219196840.

Adding to 810136000 its reverse (631018), we get a palindrome (810767018).

The spelling of 810136000 in words is "eight hundred ten million, one hundred thirty-six thousand".