128386282 has 4 divisors (see below), whose sum is σ = 192579426. Its totient is φ = 64193140.

The previous prime is 128386231. The next prime is 128386289. The reversal of 128386282 is 282683821.

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., 127938721 + 447561 = 11311^2 + 669^2 .

It is not an unprimeable number, because it can be changed into a prime (128386289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32096569 + ... + 32096572.

Almost surely, 2^128386282 is an apocalyptic number.

128386282 is a deficient number, since it is larger than the sum of its proper divisors (64193144).

128386282 is an equidigital number, since it uses as much as digits as its factorization.

128386282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64193143.

The product of its digits is 73728, while the sum is 40.

The square root of 128386282 is about 11330.7670525874. The cubic root of 128386282 is about 504.4748741924.

The spelling of 128386282 in words is "one hundred twenty-eight million, three hundred eighty-six thousand, two hundred eighty-two".