7008181 has 2 divisors, whose sum is σ = 7008182. Its totient is φ = 7008180.

The previous prime is 7008173. The next prime is 7008191. The reversal of 7008181 is 1818007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6937956 + 70225 = 2634^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 7008181 - 2³ = 7008173 is a prime.

It is a super-2 number, since 2×7008181² = 98229201857522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7008101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3504090 + 3504091.

It is an arithmetic number, because the mean of its divisors is an integer number (3504091).

Almost surely, 2^7008181 is an apocalyptic number.

It is an amenable number.

7008181 is a deficient number, since it is larger than the sum of its proper divisors (1).

7008181 is an equidigital number, since it uses as much as digits as its factorization.

7008181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 7008181 is about 2647.2969232785. The cubic root of 7008181 is about 191.3676115977.

The spelling of 7008181 in words is "seven million, eight thousand, one hundred eighty-one".