128754507 has 24 divisors (see below), whose sum is σ = 210216000. Its totient is φ = 69700176.

The previous prime is 128754467. The next prime is 128754511. The reversal of 128754507 is 705457821.

It is not a de Polignac number, because 128754507 - 2²⁴ = 111977291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128754517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20257 + ... + 25842.

It is an arithmetic number, because the mean of its divisors is an integer number (8759000).

Almost surely, 2^128754507 is an apocalyptic number.

128754507 is a deficient number, since it is larger than the sum of its proper divisors (81461493).

128754507 is a wasteful number, since it uses less digits than its factorization.

128754507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46135 (or 46128 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 128754507 is about 11347.0043183212. The cubic root of 128754507 is about 504.9567090296.

The spelling of 128754507 in words is "one hundred twenty-eight million, seven hundred fifty-four thousand, five hundred seven".