128719007 has 2 divisors, whose sum is σ = 128719008. Its totient is φ = 128719006.

The previous prime is 128719001. The next prime is 128719021. The reversal of 128719007 is 700917821.

It is a weak prime.

It is an emirp because it is prime and its reverse (700917821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128719007 - 2¹⁶ = 128653471 is a prime.

It is a Chen prime.

It is equal to p_7309556 and since 128719007 and 7309556 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128719001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64359503 + 64359504.

It is an arithmetic number, because the mean of its divisors is an integer number (64359504).

Almost surely, 2^128719007 is an apocalyptic number.

128719007 is a deficient number, since it is larger than the sum of its proper divisors (1).

128719007 is an equidigital number, since it uses as much as digits as its factorization.

128719007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 128719007 is about 11345.4399209550. The cubic root of 128719007 is about 504.9102961276.

The spelling of 128719007 in words is "one hundred twenty-eight million, seven hundred nineteen thousand, seven".