128041603 has 4 divisors (see below), whose sum is σ = 135573480. Its totient is φ = 120509728.

The previous prime is 128041591. The next prime is 128041633. The reversal of 128041603 is 306140821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128041603 - 2²¹ = 125944451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128041633) 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, 3765913 + ... + 3765946.

It is an arithmetic number, because the mean of its divisors is an integer number (33893370).

Almost surely, 2^128041603 is an apocalyptic number.

128041603 is a deficient number, since it is larger than the sum of its proper divisors (7531877).

128041603 is an equidigital number, since it uses as much as digits as its factorization.

128041603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7531876.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 128041603 is about 11315.5469598248. The cubic root of 128041603 is about 504.0230145596.

The spelling of 128041603 in words is "one hundred twenty-eight million, forty-one thousand, six hundred three".