10128605 has 4 divisors (see below), whose sum is σ = 12154332. Its totient is φ = 8102880.

The previous prime is 10128593. The next prime is 10128637. The reversal of 10128605 is 50682101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3467044 + 6661561 = 1862^2 + 2581^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10128605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012856 + ... + 1012865.

It is an arithmetic number, because the mean of its divisors is an integer number (3038583).

Almost surely, 2^10128605 is an apocalyptic number.

It is an amenable number.

10128605 is a deficient number, since it is larger than the sum of its proper divisors (2025727).

10128605 is an equidigital number, since it uses as much as digits as its factorization.

10128605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025726.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 10128605 is about 3182.5469360247. The cubic root of 10128605 is about 216.3631081029.

The spelling of 10128605 in words is "ten million, one hundred twenty-eight thousand, six hundred five".