6805131 has 4 divisors (see below), whose sum is σ = 9073512. Its totient is φ = 4536752.

The previous prime is 6805121. The next prime is 6805157. The reversal of 6805131 is 1315086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6805131 - 2¹⁹ = 6280843 is a prime.

It is a super-2 number, since 2×6805131² = 92619615854322, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (6805121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134186 + ... + 1134191.

It is an arithmetic number, because the mean of its divisors is an integer number (2268378).

Almost surely, 2^6805131 is an apocalyptic number.

6805131 is a deficient number, since it is larger than the sum of its proper divisors (2268381).

6805131 is a wasteful number, since it uses less digits than its factorization.

6805131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268380.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 6805131 is about 2608.6646009022. The cubic root of 6805131 is about 189.5012867641.

The spelling of 6805131 in words is "six million, eight hundred five thousand, one hundred thirty-one".