128715383 has 8 divisors (see below), whose sum is σ = 137436288. Its totient is φ = 120254904.

The previous prime is 128715373. The next prime is 128715397. The reversal of 128715383 is 383517821.

It is a happy number.

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 128715383 - 2¹⁶ = 128649847 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 (128715373) 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, 64085 + ... + 66062.

It is an arithmetic number, because the mean of its divisors is an integer number (17179536).

Almost surely, 2^128715383 is an apocalyptic number.

128715383 is a deficient number, since it is larger than the sum of its proper divisors (8720905).

128715383 is a wasteful number, since it uses less digits than its factorization.

128715383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130213.

The product of its digits is 40320, while the sum is 38.

The square root of 128715383 is about 11345.2802080865. The cubic root of 128715383 is about 504.9055576094.

The spelling of 128715383 in words is "one hundred twenty-eight million, seven hundred fifteen thousand, three hundred eighty-three".