128364005 has 32 divisors (see below), whose sum is σ = 198685440. Its totient is φ = 77253120.

The previous prime is 128363969. The next prime is 128364011. The reversal of 128364005 is 500463821.

It is not a de Polignac number, because 128364005 - 2¹⁴ = 128347621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5417 + ... + 16913.

It is an arithmetic number, because the mean of its divisors is an integer number (6208920).

Almost surely, 2^128364005 is an apocalyptic number.

It is an amenable number.

128364005 is a deficient number, since it is larger than the sum of its proper divisors (70321435).

128364005 is a wasteful number, since it uses less digits than its factorization.

128364005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11549.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 128364005 is about 11329.7839785232. The cubic root of 128364005 is about 504.4456944476.

The spelling of 128364005 in words is "one hundred twenty-eight million, three hundred sixty-four thousand, five".