128914056 has 48 divisors (see below), whose sum is σ = 355071600. Its totient is φ = 42241632.

The previous prime is 128914003. The next prime is 128914081. The reversal of 128914056 is 650419821.

It is a super-2 number, since 2×128914056² = 33237667668742272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 128914056.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10926 + ... + 19421.

It is an arithmetic number, because the mean of its divisors is an integer number (7397325).

Almost surely, 2^128914056 is an apocalyptic number.

It is an amenable number.

128914056 is an abundant number, since it is smaller than the sum of its proper divisors (226157544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128914056 is a wasteful number, since it uses less digits than its factorization.

128914056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30418 (or 30411 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 128914056 is about 11354.0325875875. The cubic root of 128914056 is about 505.1651990328.

The spelling of 128914056 in words is "one hundred twenty-eight million, nine hundred fourteen thousand, fifty-six".