100128575 has 24 divisors (see below), whose sum is σ = 131338320. Its totient is φ = 75513600.

The previous prime is 100128569. The next prime is 100128617. The reversal of 100128575 is 575821001.

It is not a de Polignac number, because 100128575 - 2⁴ = 100128559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131195 + ... + 131955.

It is an arithmetic number, because the mean of its divisors is an integer number (5472430).

Almost surely, 2^100128575 is an apocalyptic number.

100128575 is a deficient number, since it is larger than the sum of its proper divisors (31209745).

100128575 is a wasteful number, since it uses less digits than its factorization.

100128575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 100128575 is about 10006.4266848861. The cubic root of 100128575 is about 464.3577289251.

Adding to 100128575 its reverse (575821001), we get a palindrome (675949576).

The spelling of 100128575 in words is "one hundred million, one hundred twenty-eight thousand, five hundred seventy-five".