128654545 has 8 divisors (see below), whose sum is σ = 154511424. Its totient is φ = 102839664.

The previous prime is 128654531. The next prime is 128654609. The reversal of 128654545 is 545456821.

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 128654545 - 2¹⁵ = 128621777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128654498 and 128654507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3309 + ... + 16378.

It is an arithmetic number, because the mean of its divisors is an integer number (19313928).

Almost surely, 2^128654545 is an apocalyptic number.

It is an amenable number.

128654545 is a deficient number, since it is larger than the sum of its proper divisors (25856879).

128654545 is a wasteful number, since it uses less digits than its factorization.

128654545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20999.

The product of its digits is 192000, while the sum is 40.

The square root of 128654545 is about 11342.5986881314. The cubic root of 128654545 is about 504.8259963209.

The spelling of 128654545 in words is "one hundred twenty-eight million, six hundred fifty-four thousand, five hundred forty-five".