128316379 has 8 divisors (see below), whose sum is σ = 134008992. Its totient is φ = 122633280.

The previous prime is 128316361. The next prime is 128316389. The reversal of 128316379 is 973613821.

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

It is a cyclic number.

It is not a de Polignac number, because 128316379 - 2¹¹ = 128314331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128316319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49639 + ... + 52159.

It is an arithmetic number, because the mean of its divisors is an integer number (16751124).

Almost surely, 2^128316379 is an apocalyptic number.

128316379 is a deficient number, since it is larger than the sum of its proper divisors (5692613).

128316379 is a wasteful number, since it uses less digits than its factorization.

128316379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4757.

The product of its digits is 54432, while the sum is 40.

The square root of 128316379 is about 11327.6819782337. The cubic root of 128316379 is about 504.3832997431.

The spelling of 128316379 in words is "one hundred twenty-eight million, three hundred sixteen thousand, three hundred seventy-nine".