128343241 has 16 divisors (see below), whose sum is σ = 143614800. Its totient is φ = 113879808.

The previous prime is 128343227. The next prime is 128343247. The reversal of 128343241 is 142343821.

It can be written as a sum of positive squares in 8 ways, for example, as 87616 + 128255625 = 296^2 + 11325^2 .

It is a cyclic number.

It is not a de Polignac number, because 128343241 - 2⁵ = 128343209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128343247) 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, 103815 + ... + 105043.

It is an arithmetic number, because the mean of its divisors is an integer number (8975925).

Almost surely, 2^128343241 is an apocalyptic number.

It is an amenable number.

128343241 is a deficient number, since it is larger than the sum of its proper divisors (15271559).

128343241 is a wasteful number, since it uses less digits than its factorization.

128343241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548.

The product of its digits is 4608, while the sum is 28.

The square root of 128343241 is about 11328.8675956602. The cubic root of 128343241 is about 504.4184934806.

The spelling of 128343241 in words is "one hundred twenty-eight million, three hundred forty-three thousand, two hundred forty-one".