6678131 has 2 divisors, whose sum is σ = 6678132. Its totient is φ = 6678130.

The previous prime is 6678109. The next prime is 6678143. The reversal of 6678131 is 1318766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6678131 - 2¹⁴ = 6661747 is a prime.

It is a super-2 number, since 2×6678131² = 89194867306322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6678431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3339065 + 3339066.

It is an arithmetic number, because the mean of its divisors is an integer number (3339066).

Almost surely, 2^6678131 is an apocalyptic number.

6678131 is a deficient number, since it is larger than the sum of its proper divisors (1).

6678131 is an equidigital number, since it uses as much as digits as its factorization.

6678131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 6678131 is about 2584.2080024642. The cubic root of 6678131 is about 188.3150275017.

The spelling of 6678131 in words is "six million, six hundred seventy-eight thousand, one hundred thirty-one".