128983619 has 8 divisors (see below), whose sum is σ = 134235360. Its totient is φ = 123785536.

The previous prime is 128983579. The next prime is 128983633. The reversal of 128983619 is 916389821.

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

It is a cyclic number.

It is not a de Polignac number, because 128983619 - 2²⁰ = 127935043 is a prime.

It is a super-2 number, since 2×128983619² = 33273547940674322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128983639) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8474 + ... + 18159.

It is an arithmetic number, because the mean of its divisors is an integer number (16779420).

Almost surely, 2^128983619 is an apocalyptic number.

128983619 is a deficient number, since it is larger than the sum of its proper divisors (5251741).

128983619 is a wasteful number, since it uses less digits than its factorization.

128983619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26829.

The product of its digits is 186624, while the sum is 47.

The square root of 128983619 is about 11357.0955353911. The cubic root of 128983619 is about 505.2560463487.

The spelling of 128983619 in words is "one hundred twenty-eight million, nine hundred eighty-three thousand, six hundred nineteen".