3235220161 has 2 divisors, whose sum is σ = 3235220162. Its totient is φ = 3235220160.

The previous prime is 3235220143. The next prime is 3235220237. The reversal of 3235220161 is 1610225323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2299777936 + 935442225 = 47956^2 + 30585^2 .

It is a cyclic number.

It is not a de Polignac number, because 3235220161 - 2⁷ = 3235220033 is a prime.

It is not a weakly prime, because it can be changed into another prime (3235223161) 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, 1617610080 + 1617610081.

It is an arithmetic number, because the mean of its divisors is an integer number (1617610081).

Almost surely, 2^3235220161 is an apocalyptic number.

It is an amenable number.

3235220161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3235220161 is an equidigital number, since it uses as much as digits as its factorization.

3235220161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3235220161 is about 56878.9957805164. The cubic root of 3235220161 is about 1478.9992261882. Note that the first 3 decimals are identical.

Adding to 3235220161 its reverse (1610225323), we get a palindrome (4845445484).

The spelling of 3235220161 in words is "three billion, two hundred thirty-five million, two hundred twenty thousand, one hundred sixty-one".