128582963 has 4 divisors (see below), whose sum is σ = 128605680. Its totient is φ = 128560248.

The previous prime is 128582941. The next prime is 128582981. The reversal of 128582963 is 369285821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 369285821 = 53 ⋅6967657.

It is a cyclic number.

It is not a de Polignac number, because 128582963 - 2¹² = 128578867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128582933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4706 + ... + 16712.

It is an arithmetic number, because the mean of its divisors is an integer number (32151420).

Almost surely, 2^128582963 is an apocalyptic number.

128582963 is a deficient number, since it is larger than the sum of its proper divisors (22717).

128582963 is a wasteful number, since it uses less digits than its factorization.

128582963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22716.

The product of its digits is 207360, while the sum is 44.

The square root of 128582963 is about 11339.4427993619. The cubic root of 128582963 is about 504.7323523730.

It can be divided in two parts, 1285 and 82963, that added together give a palindrome (84248).

The spelling of 128582963 in words is "one hundred twenty-eight million, five hundred eighty-two thousand, nine hundred sixty-three".