3241138561 has 2 divisors, whose sum is σ = 3241138562. Its totient is φ = 3241138560.

The previous prime is 3241138531. The next prime is 3241138573. The reversal of 3241138561 is 1658311423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3239886400 + 1252161 = 56920^2 + 1119^2 .

It is a cyclic number.

It is not a de Polignac number, because 3241138561 - 2⁵ = 3241138529 is a prime.

It is not a weakly prime, because it can be changed into another prime (3241138531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620569280 + 1620569281.

It is an arithmetic number, because the mean of its divisors is an integer number (1620569281).

Almost surely, 2^3241138561 is an apocalyptic number.

It is an amenable number.

3241138561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3241138561 is an equidigital number, since it uses as much as digits as its factorization.

3241138561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 3241138561 is about 56930.9982434877. The cubic root of 3241138561 is about 1479.9005534896.

Adding to 3241138561 its reverse (1658311423), we get a palindrome (4899449984).

The spelling of 3241138561 in words is "three billion, two hundred forty-one million, one hundred thirty-eight thousand, five hundred sixty-one".