128651282 has 8 divisors (see below), whose sum is σ = 201367296. Its totient is φ = 61528852.

The previous prime is 128651249. The next prime is 128651309. The reversal of 128651282 is 282156821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 1398338 + ... + 1398429.

It is an arithmetic number, because the mean of its divisors is an integer number (25170912).

Almost surely, 2^128651282 is an apocalyptic number.

128651282 is a deficient number, since it is larger than the sum of its proper divisors (72716014).

128651282 is a wasteful number, since it uses less digits than its factorization.

128651282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796792.

The product of its digits is 15360, while the sum is 35.

The square root of 128651282 is about 11342.4548489293. The cubic root of 128651282 is about 504.8217284029.

The spelling of 128651282 in words is "one hundred twenty-eight million, six hundred fifty-one thousand, two hundred eighty-two".