810900075 has 24 divisors (see below), whose sum is σ = 1398981888. Its totient is φ = 413675680.

The previous prime is 810900073. The next prime is 810900109. The reversal of 810900075 is 570009018.

810900075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 810900075 - 2¹ = 810900073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (810900073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233319 + ... + 236768.

It is an arithmetic number, because the mean of its divisors is an integer number (58290912).

Almost surely, 2^810900075 is an apocalyptic number.

810900075 is a deficient number, since it is larger than the sum of its proper divisors (588081813).

810900075 is a wasteful number, since it uses less digits than its factorization.

810900075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470123 (or 470118 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 810900075 is about 28476.3072570865. The cubic root of 810900075 is about 932.5149008010.

The spelling of 810900075 in words is "eight hundred ten million, nine hundred thousand, seventy-five".