128547315 has 36 divisors (see below), whose sum is σ = 241287696. Its totient is φ = 63281088.

The previous prime is 128547301. The next prime is 128547317. The reversal of 128547315 is 513745821.

It is not a de Polignac number, because 128547315 - 2¹¹ = 128545267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128547315.

It is not an unprimeable number, because it can be changed into a prime (128547317) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 847 + ... + 16056.

It is an arithmetic number, because the mean of its divisors is an integer number (6702436).

Almost surely, 2^128547315 is an apocalyptic number.

128547315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128547315 is a deficient number, since it is larger than the sum of its proper divisors (112740381).

128547315 is a wasteful number, since it uses less digits than its factorization.

128547315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16940 (or 16924 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 128547315 is about 11337.8708318626. The cubic root of 128547315 is about 504.6857045085.

The spelling of 128547315 in words is "one hundred twenty-eight million, five hundred forty-seven thousand, three hundred fifteen".