128715607 has 2 divisors, whose sum is σ = 128715608. Its totient is φ = 128715606.

The previous prime is 128715589. The next prime is 128715611. The reversal of 128715607 is 706517821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128715607 - 2¹⁹ = 128191319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128715647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64357803 + 64357804.

It is an arithmetic number, because the mean of its divisors is an integer number (64357804).

Almost surely, 2^128715607 is an apocalyptic number.

128715607 is a deficient number, since it is larger than the sum of its proper divisors (1).

128715607 is an equidigital number, since it uses as much as digits as its factorization.

128715607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 128715607 is about 11345.2900800288. The cubic root of 128715607 is about 504.9058505005.

The spelling of 128715607 in words is "one hundred twenty-eight million, seven hundred fifteen thousand, six hundred seven".