6506131 has 4 divisors (see below), whose sum is σ = 6513912. Its totient is φ = 6498352.

The previous prime is 6506111. The next prime is 6506141. The reversal of 6506131 is 1316056.

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 6506131 - 2⁵ = 6506099 is a prime.

It is a super-2 number, since 2×6506131² = 84659481178322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6506111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2461 + ... + 4366.

It is an arithmetic number, because the mean of its divisors is an integer number (1628478).

Almost surely, 2^6506131 is an apocalyptic number.

6506131 is a deficient number, since it is larger than the sum of its proper divisors (7781).

6506131 is an equidigital number, since it uses as much as digits as its factorization.

6506131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7780.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 6506131 is about 2550.7118614222. The cubic root of 6506131 is about 186.6842163914.

The spelling of 6506131 in words is "six million, five hundred six thousand, one hundred thirty-one".