128454473 has 8 divisors (see below), whose sum is σ = 147143040. Its totient is φ = 109850400.

The previous prime is 128454461. The next prime is 128454503. The reversal of 128454473 is 374454821.

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

It is a cyclic number.

It is not a de Polignac number, because 128454473 - 2⁶ = 128454409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128454673) 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, 17828 + ... + 23973.

It is an arithmetic number, because the mean of its divisors is an integer number (18392880).

Almost surely, 2^128454473 is an apocalyptic number.

It is an amenable number.

128454473 is a deficient number, since it is larger than the sum of its proper divisors (18688567).

128454473 is an equidigital number, since it uses as much as digits as its factorization.

128454473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42247.

The product of its digits is 107520, while the sum is 38.

The square root of 128454473 is about 11333.7757609722. The cubic root of 128454473 is about 504.5641738614.

The spelling of 128454473 in words is "one hundred twenty-eight million, four hundred fifty-four thousand, four hundred seventy-three".