128454953 has 8 divisors (see below), whose sum is σ = 147508320. Its totient is φ = 110630880.

The previous prime is 128454947. The next prime is 128454967. The reversal of 128454953 is 359454821.

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 128454953 - 2²² = 124260649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128454953.

It is not an unprimeable number, because it can be changed into a prime (128454923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307100 + ... + 307517.

It is an arithmetic number, because the mean of its divisors is an integer number (18438540).

Almost surely, 2^128454953 is an apocalyptic number.

It is an amenable number.

128454953 is a deficient number, since it is larger than the sum of its proper divisors (19053367).

128454953 is a wasteful number, since it uses less digits than its factorization.

128454953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614647.

The product of its digits is 172800, while the sum is 41.

The square root of 128454953 is about 11333.7969365963. The cubic root of 128454953 is about 504.5648023344.

The spelling of 128454953 in words is "one hundred twenty-eight million, four hundred fifty-four thousand, nine hundred fifty-three".