128753907 has 16 divisors (see below), whose sum is σ = 175328928. Its totient is φ = 84015360.

The previous prime is 128753887. The next prime is 128753909. The reversal of 128753907 is 709357821.

It is not a de Polignac number, because 128753907 - 2⁶ = 128753843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128753909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96807 + ... + 98127.

It is an arithmetic number, because the mean of its divisors is an integer number (10958058).

Almost surely, 2^128753907 is an apocalyptic number.

128753907 is a deficient number, since it is larger than the sum of its proper divisors (46575021).

128753907 is a wasteful number, since it uses less digits than its factorization.

128753907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 128753907 is about 11346.9778795942. The cubic root of 128753907 is about 504.9559246570.

The spelling of 128753907 in words is "one hundred twenty-eight million, seven hundred fifty-three thousand, nine hundred seven".