128794615 has 16 divisors (see below), whose sum is σ = 160782336. Its totient is φ = 98935200.

The previous prime is 128794609. The next prime is 128794619. The reversal of 128794615 is 516497821.

It is not a de Polignac number, because 128794615 - 2⁵ = 128794583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128794619) 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, 17134 + ... + 23476.

It is an arithmetic number, because the mean of its divisors is an integer number (10048896).

Almost surely, 2^128794615 is an apocalyptic number.

128794615 is a deficient number, since it is larger than the sum of its proper divisors (31987721).

128794615 is a wasteful number, since it uses less digits than its factorization.

128794615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510.

The product of its digits is 120960, while the sum is 43.

The square root of 128794615 is about 11348.7715194201. The cubic root of 128794615 is about 505.0091361939.

The spelling of 128794615 in words is "one hundred twenty-eight million, seven hundred ninety-four thousand, six hundred fifteen".