128710615 has 8 divisors (see below), whose sum is σ = 168493968. Its totient is φ = 93607680.

The previous prime is 128710609. The next prime is 128710619. The reversal of 128710615 is 516017821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128710615 - 2⁹ = 128710103 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 (128710619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170042 + ... + 1170151.

It is an arithmetic number, because the mean of its divisors is an integer number (21061746).

Almost surely, 2^128710615 is an apocalyptic number.

128710615 is a deficient number, since it is larger than the sum of its proper divisors (39783353).

128710615 is a wasteful number, since it uses less digits than its factorization.

128710615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340209.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 128710615 is about 11345.0700747065. The cubic root of 128710615 is about 504.8993231320.

The spelling of 128710615 in words is "one hundred twenty-eight million, seven hundred ten thousand, six hundred fifteen".