128093443 has 4 divisors (see below), whose sum is σ = 129897648. Its totient is φ = 126289240.

The previous prime is 128093429. The next prime is 128093461. The reversal of 128093443 is 344390821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344390821 = 83 ⋅4149287.

It is a cyclic number.

It is not a de Polignac number, because 128093443 - 2⁵ = 128093411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128093399 and 128093408.

It is not an unprimeable number, because it can be changed into a prime (128093243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901996 + ... + 902137.

It is an arithmetic number, because the mean of its divisors is an integer number (32474412).

Almost surely, 2^128093443 is an apocalyptic number.

128093443 is a deficient number, since it is larger than the sum of its proper divisors (1804205).

128093443 is an equidigital number, since it uses as much as digits as its factorization.

128093443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804204.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 128093443 is about 11317.8373817616. The cubic root of 128093443 is about 504.0910263804.

The spelling of 128093443 in words is "one hundred twenty-eight million, ninety-three thousand, four hundred forty-three".