6811131 has 8 divisors (see below), whose sum is σ = 9139984. Its totient is φ = 4511520.

The previous prime is 6811127. The next prime is 6811141. The reversal of 6811131 is 1311186.

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

It is not a de Polignac number, because 6811131 - 2² = 6811127 is a prime.

It is a super-2 number, since 2×6811131² = 92783010998322, 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 = 6811098 and 6811107.

It is not an unprimeable number, because it can be changed into a prime (6811111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6760 + ... + 7701.

It is an arithmetic number, because the mean of its divisors is an integer number (1142498).

Almost surely, 2^6811131 is an apocalyptic number.

6811131 is a deficient number, since it is larger than the sum of its proper divisors (2328853).

6811131 is a wasteful number, since it uses less digits than its factorization.

6811131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14621.

The product of its digits is 144, while the sum is 21.

The square root of 6811131 is about 2609.8143612142. The cubic root of 6811131 is about 189.5569640524.

Subtracting from 6811131 its reverse (1311186), we obtain a palindrome (5499945).

The spelling of 6811131 in words is "six million, eight hundred eleven thousand, one hundred thirty-one".