128401143 has 8 divisors (see below), whose sum is σ = 184370928. Its totient is φ = 79016064.

The previous prime is 128401127. The next prime is 128401151. The reversal of 128401143 is 341104821.

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

It is not a de Polignac number, because 128401143 - 2⁴ = 128401127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128401103) 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, 1646130 + ... + 1646207.

It is an arithmetic number, because the mean of its divisors is an integer number (23046366).

Almost surely, 2^128401143 is an apocalyptic number.

128401143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

128401143 is a deficient number, since it is larger than the sum of its proper divisors (55969785).

128401143 is a wasteful number, since it uses less digits than its factorization.

128401143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3292353.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 128401143 is about 11331.4228144572. The cubic root of 128401143 is about 504.4943381407.

Adding to 128401143 its reverse (341104821), we get a palindrome (469505964).

The spelling of 128401143 in words is "one hundred twenty-eight million, four hundred one thousand, one hundred forty-three".