128441273 has 12 divisors (see below), whose sum is σ = 143537940. Its totient is φ = 114518016.

The previous prime is 128441267. The next prime is 128441279. The reversal of 128441273 is 372144821.

It is an interprime number because it is at equal distance from previous prime (128441267) and next prime (128441279).

It can be written as a sum of positive squares in 2 ways, for example, as 85969984 + 42471289 = 9272^2 + 6517^2 .

It is not a de Polignac number, because 128441273 - 2¹⁴ = 128424889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128441279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4328 + ... + 16601.

It is an arithmetic number, because the mean of its divisors is an integer number (11961495).

Almost surely, 2^128441273 is an apocalyptic number.

It is an amenable number.

128441273 is a deficient number, since it is larger than the sum of its proper divisors (15096667).

128441273 is a wasteful number, since it uses less digits than its factorization.

128441273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20984 (or 20965 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 128441273 is about 11333.1934158030. The cubic root of 128441273 is about 504.5468902405.

The spelling of 128441273 in words is "one hundred twenty-eight million, four hundred forty-one thousand, two hundred seventy-three".