128518282 has 4 divisors (see below), whose sum is σ = 192777426. Its totient is φ = 64259140.

The previous prime is 128518237. The next prime is 128518301. The reversal of 128518282 is 282815821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 105083001 + 23435281 = 10251^2 + 4841^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32129569 + ... + 32129572.

Almost surely, 2^128518282 is an apocalyptic number.

128518282 is a deficient number, since it is larger than the sum of its proper divisors (64259144).

128518282 is an equidigital number, since it uses as much as digits as its factorization.

128518282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64259143.

The product of its digits is 20480, while the sum is 37.

The square root of 128518282 is about 11336.5904045264. The cubic root of 128518282 is about 504.6477064549.

The spelling of 128518282 in words is "one hundred twenty-eight million, five hundred eighteen thousand, two hundred eighty-two".