128485041 has 4 divisors (see below), whose sum is σ = 171313392. Its totient is φ = 85656692.

The previous prime is 128485033. The next prime is 128485069. The reversal of 128485041 is 140584821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 128485041 - 2³ = 128485033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128484993 and 128485011.

It is not an unprimeable number, because it can be changed into a prime (128485001) 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 3 ways as a sum of consecutive naturals, for example, 21414171 + ... + 21414176.

It is an arithmetic number, because the mean of its divisors is an integer number (42828348).

Almost surely, 2^128485041 is an apocalyptic number.

It is an amenable number.

128485041 is a deficient number, since it is larger than the sum of its proper divisors (42828351).

128485041 is an equidigital number, since it uses as much as digits as its factorization.

128485041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42828350.

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 128485041 is about 11335.1242163463. The cubic root of 128485041 is about 504.6041939921.

The spelling of 128485041 in words is "one hundred twenty-eight million, four hundred eighty-five thousand, forty-one".