3128667601 has 2 divisors, whose sum is σ = 3128667602. Its totient is φ = 3128667600.

The previous prime is 3128667599. The next prime is 3128667671. The reversal of 3128667601 is 1067668213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1638630400 + 1490037201 = 40480^2 + 38601^2 .

It is an emirp because it is prime and its reverse (1067668213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3128667601 - 2¹ = 3128667599 is a prime.

Together with 3128667599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3128667671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564333800 + 1564333801.

It is an arithmetic number, because the mean of its divisors is an integer number (1564333801).

Almost surely, 2^3128667601 is an apocalyptic number.

It is an amenable number.

3128667601 is a deficient number, since it is larger than the sum of its proper divisors (1).

3128667601 is an equidigital number, since it uses as much as digits as its factorization.

3128667601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 3128667601 is about 55934.4938387754. The cubic root of 3128667601 is about 1462.5805991181.

The spelling of 3128667601 in words is "three billion, one hundred twenty-eight million, six hundred sixty-seven thousand, six hundred one".