128060515 has 16 divisors (see below), whose sum is σ = 172176480. Its totient is φ = 90616320.

The previous prime is 128060509. The next prime is 128060519. The reversal of 128060515 is 515060821.

It is a de Polignac number, because none of the positive numbers 2^k-128060515 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128060519) 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, 29430 + ... + 33499.

It is an arithmetic number, because the mean of its divisors is an integer number (10761030).

Almost surely, 2^128060515 is an apocalyptic number.

128060515 is a deficient number, since it is larger than the sum of its proper divisors (44115965).

128060515 is a wasteful number, since it uses less digits than its factorization.

128060515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62982.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 128060515 is about 11316.3825933909. The cubic root of 128060515 is about 504.0478284060.

The spelling of 128060515 in words is "one hundred twenty-eight million, sixty thousand, five hundred fifteen".