128714787 has 6 divisors (see below), whose sum is σ = 185921372. Its totient is φ = 85809852.

The previous prime is 128714777. The next prime is 128714849. The reversal of 128714787 is 787417821.

It is not a de Polignac number, because 128714787 - 2⁴ = 128714771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128714777) 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 in 5 ways as a sum of consecutive naturals, for example, 7150813 + ... + 7150830.

Almost surely, 2^128714787 is an apocalyptic number.

128714787 is a deficient number, since it is larger than the sum of its proper divisors (57206585).

128714787 is a wasteful number, since it uses less digits than its factorization.

128714787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14301649 (or 14301646 counting only the distinct ones).

The product of its digits is 175616, while the sum is 45.

The square root of 128714787 is about 11345.2539416269. The cubic root of 128714787 is about 504.9047783081.

The spelling of 128714787 in words is "one hundred twenty-eight million, seven hundred fourteen thousand, seven hundred eighty-seven".