128678301 has 20 divisors (see below), whose sum is σ = 192535200. Its totient is φ = 85646376.

The previous prime is 128678239. The next prime is 128678309. The reversal of 128678301 is 103876821.

128678301 is a `hidden beast` number, since 1 + 286 + 78 + 301 = 666.

It is not a de Polignac number, because 128678301 - 2⁹ = 128677789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128678309) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 81760 + ... + 83318.

It is an arithmetic number, because the mean of its divisors is an integer number (9626760).

Almost surely, 2^128678301 is an apocalyptic number.

It is an amenable number.

128678301 is a deficient number, since it is larger than the sum of its proper divisors (63856899).

128678301 is a wasteful number, since it uses less digits than its factorization.

128678301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590 (or 2581 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 128678301 is about 11343.6458424970. The cubic root of 128678301 is about 504.8570663679.

The spelling of 128678301 in words is "one hundred twenty-eight million, six hundred seventy-eight thousand, three hundred one".