7128601 has 2 divisors, whose sum is σ = 7128602. Its totient is φ = 7128600.

The previous prime is 7128587. The next prime is 7128617. The reversal of 7128601 is 1068217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6245001 + 883600 = 2499^2 + 940^2 .

It is an emirp because it is prime and its reverse (1068217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7128601 - 2¹⁵ = 7095833 is a prime.

It is not a weakly prime, because it can be changed into another prime (7128691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3564300 + 3564301.

It is an arithmetic number, because the mean of its divisors is an integer number (3564301).

Almost surely, 2^7128601 is an apocalyptic number.

It is an amenable number.

7128601 is a deficient number, since it is larger than the sum of its proper divisors (1).

7128601 is an equidigital number, since it uses as much as digits as its factorization.

7128601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 7128601 is about 2669.9440069035. The cubic root of 7128601 is about 192.4574685370.

The spelling of 7128601 in words is "seven million, one hundred twenty-eight thousand, six hundred one".