128215327 has 8 divisors (see below), whose sum is σ = 129733760. Its totient is φ = 126702360.

The previous prime is 128215303. The next prime is 128215331. The reversal of 128215327 is 723512821.

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

It is not a de Polignac number, because 128215327 - 2¹¹ = 128213279 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 (128215127) 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, 62752 + ... + 64762.

It is an arithmetic number, because the mean of its divisors is an integer number (16216720).

Almost surely, 2^128215327 is an apocalyptic number.

128215327 is a deficient number, since it is larger than the sum of its proper divisors (1518433).

128215327 is a wasteful number, since it uses less digits than its factorization.

128215327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733.

The product of its digits is 6720, while the sum is 31.

The square root of 128215327 is about 11323.2206990767. The cubic root of 128215327 is about 504.2508606183.

The spelling of 128215327 in words is "one hundred twenty-eight million, two hundred fifteen thousand, three hundred twenty-seven".