128717103 has 8 divisors (see below), whose sum is σ = 175614208. Its totient is φ = 83815704.

The previous prime is 128717089. The next prime is 128717129. The reversal of 128717103 is 301717821.

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

It is not a de Polignac number, because 128717103 - 2⁹ = 128716591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128717203) 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, 498775 + ... + 499032.

It is an arithmetic number, because the mean of its divisors is an integer number (21951776).

Almost surely, 2^128717103 is an apocalyptic number.

128717103 is a deficient number, since it is larger than the sum of its proper divisors (46897105).

128717103 is an equidigital number, since it uses as much as digits as its factorization.

128717103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997853.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 128717103 is about 11345.3560102802. The cubic root of 128717103 is about 504.9078065861.

The spelling of 128717103 in words is "one hundred twenty-eight million, seven hundred seventeen thousand, one hundred three".