128283459 has 16 divisors (see below), whose sum is σ = 180362880. Its totient is φ = 80879040.

The previous prime is 128283391. The next prime is 128283469. The reversal of 128283459 is 954382821.

It is not a de Polignac number, because 128283459 - 2¹¹ = 128281411 is a prime.

It is a super-3 number, since 3×128283459³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128283459.

It is not an unprimeable number, because it can be changed into a prime (128283469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37759 + ... + 41015.

It is an arithmetic number, because the mean of its divisors is an integer number (11272680).

Almost surely, 2^128283459 is an apocalyptic number.

128283459 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

128283459 is a deficient number, since it is larger than the sum of its proper divisors (52079421).

128283459 is a wasteful number, since it uses less digits than its factorization.

128283459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3970.

The product of its digits is 138240, while the sum is 42.

The square root of 128283459 is about 11326.2288075069. The cubic root of 128283459 is about 504.3401623080.

The spelling of 128283459 in words is "one hundred twenty-eight million, two hundred eighty-three thousand, four hundred fifty-nine".