128466143 has 16 divisors (see below), whose sum is σ = 143730720. Its totient is φ = 114006144.

The previous prime is 128466137. The next prime is 128466199. The reversal of 128466143 is 341664821.

It is a cyclic number.

It is not a de Polignac number, because 128466143 - 2¹⁰ = 128465119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128466103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109880 + ... + 111042.

It is an arithmetic number, because the mean of its divisors is an integer number (8983170).

Almost surely, 2^128466143 is an apocalyptic number.

128466143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

128466143 is a deficient number, since it is larger than the sum of its proper divisors (15264577).

128466143 is a wasteful number, since it uses less digits than its factorization.

128466143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498.

The product of its digits is 27648, while the sum is 35.

The square root of 128466143 is about 11334.2905821229. The cubic root of 128466143 is about 504.5794531674.

The spelling of 128466143 in words is "one hundred twenty-eight million, four hundred sixty-six thousand, one hundred forty-three".