128026673 has 2 divisors, whose sum is σ = 128026674. Its totient is φ = 128026672.

The previous prime is 128026669. The next prime is 128026741. The reversal of 128026673 is 376620821.

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., 124367104 + 3659569 = 11152^2 + 1913^2 .

It is an emirp because it is prime and its reverse (376620821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128026673 - 2² = 128026669 is a prime.

It is not a weakly prime, because it can be changed into another prime (128026663) 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, 64013336 + 64013337.

It is an arithmetic number, because the mean of its divisors is an integer number (64013337).

Almost surely, 2^128026673 is an apocalyptic number.

It is an amenable number.

128026673 is a deficient number, since it is larger than the sum of its proper divisors (1).

128026673 is an equidigital number, since it uses as much as digits as its factorization.

128026673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 128026673 is about 11314.8872287796. The cubic root of 128026673 is about 504.0034236456.

The spelling of 128026673 in words is "one hundred twenty-eight million, twenty-six thousand, six hundred seventy-three".