10128205 has 4 divisors (see below), whose sum is σ = 12153852. Its totient is φ = 8102560.

The previous prime is 10128199. The next prime is 10128229. The reversal of 10128205 is 50282101.

10128205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50282101 = 59 ⋅852239.

It can be written as a sum of positive squares in 2 ways, for example, as 7628644 + 2499561 = 2762^2 + 1581^2 .

It is not a de Polignac number, because 10128205 - 2⁹ = 10127693 is a prime.

It is a Duffinian number.

10128205 is a modest number, since divided by 128205 gives 10 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012816 + ... + 1012825.

It is an arithmetic number, because the mean of its divisors is an integer number (3038463).

Almost surely, 2^10128205 is an apocalyptic number.

It is an amenable number.

10128205 is a deficient number, since it is larger than the sum of its proper divisors (2025647).

10128205 is an equidigital number, since it uses as much as digits as its factorization.

10128205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025646.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 10128205 is about 3182.4840926547. The cubic root of 10128205 is about 216.3602598534.

The spelling of 10128205 in words is "ten million, one hundred twenty-eight thousand, two hundred five".