128535147 has 48 divisors (see below), whose sum is σ = 218458080. Its totient is φ = 74400768.

The previous prime is 128535139. The next prime is 128535167. The reversal of 128535147 is 741535821.

It is not a de Polignac number, because 128535147 - 2³ = 128535139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128535137) 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, 76743 + ... + 78399.

It is an arithmetic number, because the mean of its divisors is an integer number (4551210).

Almost surely, 2^128535147 is an apocalyptic number.

128535147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

128535147 is a deficient number, since it is larger than the sum of its proper divisors (89922933).

128535147 is a wasteful number, since it uses less digits than its factorization.

128535147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709 (or 1690 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 128535147 is about 11337.3342104747. The cubic root of 128535147 is about 504.6697798678.

The spelling of 128535147 in words is "one hundred twenty-eight million, five hundred thirty-five thousand, one hundred forty-seven".