128384613 has 12 divisors (see below), whose sum is σ = 211936608. Its totient is φ = 73362600.

The previous prime is 128384593. The next prime is 128384621. The reversal of 128384613 is 316483821.

128384613 is a `hidden beast` number, since 1 + 2 + 8 + 38 + 4 + 613 = 666.

It is not a de Polignac number, because 128384613 - 2²¹ = 126287461 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128384623) 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, 1018863 + ... + 1018988.

It is an arithmetic number, because the mean of its divisors is an integer number (17661384).

Almost surely, 2^128384613 is an apocalyptic number.

It is an amenable number.

128384613 is a deficient number, since it is larger than the sum of its proper divisors (83551995).

128384613 is a wasteful number, since it uses less digits than its factorization.

128384613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037864 (or 2037861 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 128384613 is about 11330.6934033183. The cubic root of 128384613 is about 504.4726881536.

The spelling of 128384613 in words is "one hundred twenty-eight million, three hundred eighty-four thousand, six hundred thirteen".