128516045 has 16 divisors (see below), whose sum is σ = 176463360. Its totient is φ = 88018944.

The previous prime is 128516041. The next prime is 128516051. The reversal of 128516045 is 540615821.

It is a cyclic number.

It is not a de Polignac number, because 128516045 - 2² = 128516041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128516041) 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 15 ways as a sum of consecutive naturals, for example, 36941 + ... + 40269.

It is an arithmetic number, because the mean of its divisors is an integer number (11028960).

Almost surely, 2^128516045 is an apocalyptic number.

It is an amenable number.

128516045 is a deficient number, since it is larger than the sum of its proper divisors (47947315).

128516045 is a wasteful number, since it uses less digits than its factorization.

128516045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 128516045 is about 11336.4917412752. The cubic root of 128516045 is about 504.6447784578.

The spelling of 128516045 in words is "one hundred twenty-eight million, five hundred sixteen thousand, forty-five".