128347316 has 36 divisors (see below), whose sum is σ = 234637956. Its totient is φ = 61424640.

The previous prime is 128347313. The next prime is 128347327. The reversal of 128347316 is 613743821.

It can be written as a sum of positive squares in 2 ways, for example, as 77510416 + 50836900 = 8804^2 + 7130^2 .

Its product of digits (24192) is a multiple of the sum of its prime factors (432).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128347313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 664916 + ... + 665108.

It is an arithmetic number, because the mean of its divisors is an integer number (6517721).

Almost surely, 2^128347316 is an apocalyptic number.

It is an amenable number.

128347316 is a deficient number, since it is larger than the sum of its proper divisors (106290640).

128347316 is a wasteful number, since it uses less digits than its factorization.

128347316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 399 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 128347316 is about 11329.0474445118. The cubic root of 128347316 is about 504.4238319869.

The spelling of 128347316 in words is "one hundred twenty-eight million, three hundred forty-seven thousand, three hundred sixteen".