6602161 has 2 divisors, whose sum is σ = 6602162. Its totient is φ = 6602160.

The previous prime is 6602149. The next prime is 6602201. The reversal of 6602161 is 1612066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5688225 + 913936 = 2385^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 6602161 - 2⁵ = 6602129 is a prime.

It is a super-3 number, since 3×6602161³ (a number of 21 digits) contains 333 as substring.

6602161 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6602261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3301080 + 3301081.

It is an arithmetic number, because the mean of its divisors is an integer number (3301081).

Almost surely, 2^6602161 is an apocalyptic number.

It is an amenable number.

6602161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6602161 is an equidigital number, since it uses as much as digits as its factorization.

6602161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 6602161 is about 2569.4670653659. The cubic root of 6602161 is about 187.5982158031.

The spelling of 6602161 in words is "six million, six hundred two thousand, one hundred sixty-one".