6708181 has 2 divisors, whose sum is σ = 6708182. Its totient is φ = 6708180.

The previous prime is 6708179. The next prime is 6708199. The reversal of 6708181 is 1818076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 81 = 2590^2 + 9^2 .

It is a cyclic number.

It is not a de Polignac number, because 6708181 - 2¹ = 6708179 is a prime.

It is a super-2 number, since 2×6708181² = 89999384657522, which contains 22 as substring.

Together with 6708179, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6708281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3354090 + 3354091.

It is an arithmetic number, because the mean of its divisors is an integer number (3354091).

Almost surely, 2^6708181 is an apocalyptic number.

It is an amenable number.

6708181 is a deficient number, since it is larger than the sum of its proper divisors (1).

6708181 is an equidigital number, since it uses as much as digits as its factorization.

6708181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 6708181 is about 2590.0156370184. The cubic root of 6708181 is about 188.5970624943.

It can be divided in two parts, 67081 and 81, that multiplied together give a square (5433561 = 2331²).

The spelling of 6708181 in words is "six million, seven hundred eight thousand, one hundred eighty-one".