3128389241 has 2 divisors, whose sum is σ = 3128389242. Its totient is φ = 3128389240.

The previous prime is 3128389207. The next prime is 3128389279. The reversal of 3128389241 is 1429838213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2410417216 + 717972025 = 49096^2 + 26795^2 .

It is an emirp because it is prime and its reverse (1429838213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3128389241 - 2²⁶ = 3061280377 is a prime.

It is not a weakly prime, because it can be changed into another prime (3128389141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564194620 + 1564194621.

It is an arithmetic number, because the mean of its divisors is an integer number (1564194621).

Almost surely, 2^3128389241 is an apocalyptic number.

It is an amenable number.

3128389241 is a deficient number, since it is larger than the sum of its proper divisors (1).

3128389241 is an equidigital number, since it uses as much as digits as its factorization.

3128389241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 41.

The square root of 3128389241 is about 55932.0055156258. The cubic root of 3128389241 is about 1462.5372221856.

The spelling of 3128389241 in words is "three billion, one hundred twenty-eight million, three hundred eighty-nine thousand, two hundred forty-one".