128488514 has 16 divisors (see below), whose sum is σ = 240290496. Its totient is φ = 50060400.

The previous prime is 128488501. The next prime is 128488517. The reversal of 128488514 is 415884821.

It is not an unprimeable number, because it can be changed into a prime (128488517) 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, 417017 + ... + 417324.

It is an arithmetic number, because the mean of its divisors is an integer number (15018156).

Almost surely, 2^128488514 is an apocalyptic number.

128488514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128488514 is a deficient number, since it is larger than the sum of its proper divisors (111801982).

128488514 is a wasteful number, since it uses less digits than its factorization.

128488514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834361.

The product of its digits is 81920, while the sum is 41.

The square root of 128488514 is about 11335.2774116913. The cubic root of 128488514 is about 504.6087404995.

It can be divided in two parts, 1284 and 88514, that added together give a palindrome (89798).

The spelling of 128488514 in words is "one hundred twenty-eight million, four hundred eighty-eight thousand, five hundred fourteen".