6541831 has 2 divisors, whose sum is σ = 6541832. Its totient is φ = 6541830.

The previous prime is 6541819. The next prime is 6541841. The reversal of 6541831 is 1381456.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6541831 is a prime.

It is a super-2 number, since 2×6541831² = 85591105665122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6541831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6541841) 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 as a sum of consecutive naturals, namely, 3270915 + 3270916.

It is an arithmetic number, because the mean of its divisors is an integer number (3270916).

Almost surely, 2^6541831 is an apocalyptic number.

6541831 is a deficient number, since it is larger than the sum of its proper divisors (1).

6541831 is an equidigital number, since it uses as much as digits as its factorization.

6541831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 6541831 is about 2557.7003342847. The cubic root of 6541831 is about 187.0250474042.

It can be divided in two parts, 654 and 1831, that added together give a triangular number (2485 = T₇₀).

The spelling of 6541831 in words is "six million, five hundred forty-one thousand, eight hundred thirty-one".