3241220161 has 2 divisors, whose sum is σ = 3241220162. Its totient is φ = 3241220160.

The previous prime is 3241220093. The next prime is 3241220173. The reversal of 3241220161 is 1610221423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1806250000 + 1434970161 = 42500^2 + 37881^2 .

It is an emirp because it is prime and its reverse (1610221423) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3241220161 is a prime.

It is not a weakly prime, because it can be changed into another prime (3241220861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620610080 + 1620610081.

It is an arithmetic number, because the mean of its divisors is an integer number (1620610081).

Almost surely, 2^3241220161 is an apocalyptic number.

It is an amenable number.

3241220161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3241220161 is an equidigital number, since it uses as much as digits as its factorization.

3241220161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 3241220161 is about 56931.7148960050. The cubic root of 3241220161 is about 1479.9129728776.

Adding to 3241220161 its reverse (1610221423), we get a palindrome (4851441584).

The spelling of 3241220161 in words is "three billion, two hundred forty-one million, two hundred twenty thousand, one hundred sixty-one".