1328241653 has 2 divisors, whose sum is σ = 1328241654. Its totient is φ = 1328241652.

The previous prime is 1328241647. The next prime is 1328241679. The reversal of 1328241653 is 3561428231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 802135684 + 526105969 = 28322^2 + 22937^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328241653 - 2⁶ = 1328241589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328241623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664120826 + 664120827.

It is an arithmetic number, because the mean of its divisors is an integer number (664120827).

Almost surely, 2^1328241653 is an apocalyptic number.

It is an amenable number.

1328241653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328241653 is an equidigital number, since it uses as much as digits as its factorization.

1328241653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 1328241653 is about 36445.0497735975. The cubic root of 1328241653 is about 1099.2395992697.

Adding to 1328241653 its reverse (3561428231), we get a palindrome (4889669884).

The spelling of 1328241653 in words is "one billion, three hundred twenty-eight million, two hundred forty-one thousand, six hundred fifty-three".