128045541 has 16 divisors (see below), whose sum is σ = 193538240. Its totient is φ = 74649600.

The previous prime is 128045539. The next prime is 128045563. The reversal of 128045541 is 145540821.

It is not a de Polignac number, because 128045541 - 2¹ = 128045539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128045499 and 128045508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128045041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85660 + ... + 87141.

It is an arithmetic number, because the mean of its divisors is an integer number (12096140).

Almost surely, 2^128045541 is an apocalyptic number.

It is an amenable number.

128045541 is a deficient number, since it is larger than the sum of its proper divisors (65492699).

128045541 is a wasteful number, since it uses less digits than its factorization.

128045541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172836.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 128045541 is about 11315.7209668673. The cubic root of 128045541 is about 504.0281816882.

The spelling of 128045541 in words is "one hundred twenty-eight million, forty-five thousand, five hundred forty-one".