809115133 has 8 divisors (see below), whose sum is σ = 871508000. Its totient is φ = 748703088.

The previous prime is 809115127. The next prime is 809115157. The reversal of 809115133 is 331511908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 809115133 - 2¹⁷ = 808984061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 809115095 and 809115104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809115173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494358 + ... + 495991.

It is an arithmetic number, because the mean of its divisors is an integer number (108938500).

Almost surely, 2^809115133 is an apocalyptic number.

It is an amenable number.

809115133 is a deficient number, since it is larger than the sum of its proper divisors (62392867).

809115133 is a wasteful number, since it uses less digits than its factorization.

809115133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990411.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 809115133 is about 28444.9491650099. The cubic root of 809115133 is about 931.8301852034.

The spelling of 809115133 in words is "eight hundred nine million, one hundred fifteen thousand, one hundred thirty-three".