128376193 has 4 divisors (see below), whose sum is σ = 140046768. Its totient is φ = 116705620.

The previous prime is 128376191. The next prime is 128376203. The reversal of 128376193 is 391673821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 128376193 - 2¹ = 128376191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128376191) 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, 5835271 + ... + 5835292.

It is an arithmetic number, because the mean of its divisors is an integer number (35011692).

Almost surely, 2^128376193 is an apocalyptic number.

It is an amenable number.

128376193 is a deficient number, since it is larger than the sum of its proper divisors (11670575).

128376193 is a wasteful number, since it uses less digits than its factorization.

128376193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11670574.

The product of its digits is 54432, while the sum is 40.

The square root of 128376193 is about 11330.3218400891. The cubic root of 128376193 is about 504.4616594360.

The spelling of 128376193 in words is "one hundred twenty-eight million, three hundred seventy-six thousand, one hundred ninety-three".