128041943 has 8 divisors (see below), whose sum is σ = 141468768. Its totient is φ = 115270144.

The previous prime is 128041937. The next prime is 128041957. The reversal of 128041943 is 349140821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128041943 - 2¹⁴ = 128025559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128041913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163346 + ... + 164127.

It is an arithmetic number, because the mean of its divisors is an integer number (17683596).

Almost surely, 2^128041943 is an apocalyptic number.

128041943 is a deficient number, since it is larger than the sum of its proper divisors (13426825).

128041943 is a wasteful number, since it uses less digits than its factorization.

128041943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327513.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 128041943 is about 11315.5619833926. The cubic root of 128041943 is about 504.0234606846.

The spelling of 128041943 in words is "one hundred twenty-eight million, forty-one thousand, nine hundred forty-three".