128385351 has 8 divisors (see below), whose sum is σ = 190200560. Its totient is φ = 85590216.

The previous prime is 128385347. The next prime is 128385373. The reversal of 128385351 is 153583821.

It is not a de Polignac number, because 128385351 - 2² = 128385347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128385331) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2377480 + ... + 2377533.

It is an arithmetic number, because the mean of its divisors is an integer number (23775070).

Almost surely, 2^128385351 is an apocalyptic number.

128385351 is a deficient number, since it is larger than the sum of its proper divisors (61815209).

128385351 is an equidigital number, since it uses as much as digits as its factorization.

128385351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4755022 (or 4755016 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 128385351 is about 11330.7259696808. The cubic root of 128385351 is about 504.4736547806.

The spelling of 128385351 in words is "one hundred twenty-eight million, three hundred eighty-five thousand, three hundred fifty-one".