128487359 has 36 divisors (see below), whose sum is σ = 177031512. Its totient is φ = 92363040.

The previous prime is 128487353. The next prime is 128487389. The reversal of 128487359 is 953784821.

128487359 = 876² + 877² + ... + 1018².

It is a happy number.

It is not a de Polignac number, because 128487359 - 2⁸ = 128487103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128487353) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 76244 + ... + 77910.

It is an arithmetic number, because the mean of its divisors is an integer number (4917542).

Almost surely, 2^128487359 is an apocalyptic number.

128487359 is a deficient number, since it is larger than the sum of its proper divisors (48544153).

128487359 is a wasteful number, since it uses less digits than its factorization.

128487359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716 (or 1698 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 128487359 is about 11335.2264644338. The cubic root of 128487359 is about 504.6072284970.

The spelling of 128487359 in words is "one hundred twenty-eight million, four hundred eighty-seven thousand, three hundred fifty-nine".