810133131 has 8 divisors (see below), whose sum is σ = 1097885584. Its totient is φ = 531234720.

The previous prime is 810133111. The next prime is 810133139. The reversal of 810133131 is 131331018.

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

It is not a de Polignac number, because 810133131 - 2⁵ = 810133099 is a prime.

It is a super-2 number, since 2×810133131² = 1312631379887726322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 810133098 and 810133107.

It is not an unprimeable number, because it can be changed into a prime (810133139) by changing a digit.

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, 2213296 + ... + 2213661.

It is an arithmetic number, because the mean of its divisors is an integer number (137235698).

Almost surely, 2^810133131 is an apocalyptic number.

810133131 is a deficient number, since it is larger than the sum of its proper divisors (287752453).

810133131 is a wasteful number, since it uses less digits than its factorization.

810133131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427021.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 810133131 is about 28462.8377186815. The cubic root of 810133131 is about 932.2208192318.

Adding to 810133131 its reverse (131331018), we get a palindrome (941464149).

The spelling of 810133131 in words is "eight hundred ten million, one hundred thirty-three thousand, one hundred thirty-one".