128653959 has 48 divisors (see below), whose sum is σ = 213262080. Its totient is φ = 68584320.

The previous prime is 128653951. The next prime is 128654017. The reversal of 128653959 is 959356821.

It is a happy number.

It is not a de Polignac number, because 128653959 - 2³ = 128653951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128653951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 203574 + ... + 204204.

It is an arithmetic number, because the mean of its divisors is an integer number (4442960).

Almost surely, 2^128653959 is an apocalyptic number.

128653959 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

128653959 is a deficient number, since it is larger than the sum of its proper divisors (84608121).

128653959 is a wasteful number, since it uses less digits than its factorization.

128653959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 733 counting only the distinct ones).

The product of its digits is 583200, while the sum is 48.

The square root of 128653959 is about 11342.5728562791. The cubic root of 128653959 is about 504.8252298536.

The spelling of 128653959 in words is "one hundred twenty-eight million, six hundred fifty-three thousand, nine hundred fifty-nine".