128254603 has 4 divisors (see below), whose sum is σ = 128354040. Its totient is φ = 128155168.

The previous prime is 128254591. The next prime is 128254619. The reversal of 128254603 is 306452821.

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 128254603 - 2⁵ = 128254571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128254663) 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, 47758 + ... + 50371.

It is an arithmetic number, because the mean of its divisors is an integer number (32088510).

Almost surely, 2^128254603 is an apocalyptic number.

128254603 is a deficient number, since it is larger than the sum of its proper divisors (99437).

128254603 is an equidigital number, since it uses as much as digits as its factorization.

128254603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99436.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 128254603 is about 11324.9548784973. The cubic root of 128254603 is about 504.3023441534.

The spelling of 128254603 in words is "one hundred twenty-eight million, two hundred fifty-four thousand, six hundred three".