6603161 has 2 divisors, whose sum is σ = 6603162. Its totient is φ = 6603160.

The previous prime is 6603151. The next prime is 6603167. The reversal of 6603161 is 1613066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4182025 + 2421136 = 2045^2 + 1556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6603161 is a prime.

It is not a weakly prime, because it can be changed into another prime (6603167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3301580 + 3301581.

It is an arithmetic number, because the mean of its divisors is an integer number (3301581).

Almost surely, 2^6603161 is an apocalyptic number.

It is an amenable number.

6603161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6603161 is an equidigital number, since it uses as much as digits as its factorization.

6603161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 6603161 is about 2569.6616508794. The cubic root of 6603161 is about 187.6076868811.

The spelling of 6603161 in words is "six million, six hundred three thousand, one hundred sixty-one".