128453511 has 8 divisors (see below), whose sum is σ = 173037424. Its totient is φ = 84752640.

The previous prime is 128453497. The next prime is 128453527. The reversal of 128453511 is 115354821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128453511 - 2¹⁰ = 128452487 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 (128453531) 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, 220420 + ... + 221001.

It is an arithmetic number, because the mean of its divisors is an integer number (21629678).

Almost surely, 2^128453511 is an apocalyptic number.

128453511 is a deficient number, since it is larger than the sum of its proper divisors (44583913).

128453511 is an equidigital number, since it uses as much as digits as its factorization.

128453511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441521.

The product of its digits is 4800, while the sum is 30.

The square root of 128453511 is about 11333.7333213730. The cubic root of 128453511 is about 504.5629142920.

The spelling of 128453511 in words is "one hundred twenty-eight million, four hundred fifty-three thousand, five hundred eleven".