128535103 has 4 divisors (see below), whose sum is σ = 128593080. Its totient is φ = 128477128.

The previous prime is 128535101. The next prime is 128535119. The reversal of 128535103 is 301535821.

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 128535103 - 2¹ = 128535101 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 (128535101) 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, 25525 + ... + 30142.

It is an arithmetic number, because the mean of its divisors is an integer number (32148270).

Almost surely, 2^128535103 is an apocalyptic number.

128535103 is a deficient number, since it is larger than the sum of its proper divisors (57977).

128535103 is an equidigital number, since it uses as much as digits as its factorization.

128535103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57976.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 128535103 is about 11337.3322699831. The cubic root of 128535103 is about 504.6697222818.

It can be divided in two parts, 12853 and 5103, that added together give a square (17956 = 134²).

The spelling of 128535103 in words is "one hundred twenty-eight million, five hundred thirty-five thousand, one hundred three".