5128205 has 4 divisors (see below), whose sum is σ = 6153852. Its totient is φ = 4102560.

The previous prime is 5128153. The next prime is 5128213. The reversal of 5128205 is 5028215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5028215 = 5 ⋅1005643.

It can be written as a sum of positive squares in 2 ways, for example, as 958441 + 4169764 = 979^2 + 2042^2 .

It is not a de Polignac number, because 5128205 - 2⁸ = 5127949 is a prime.

It is a Duffinian number.

5128205 is a modest number, since divided by 128205 gives 5 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, 512816 + ... + 512825.

It is an arithmetic number, because the mean of its divisors is an integer number (1538463).

Almost surely, 2^5128205 is an apocalyptic number.

It is an amenable number.

5128205 is a deficient number, since it is larger than the sum of its proper divisors (1025647).

5128205 is a wasteful number, since it uses less digits than its factorization.

5128205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025646.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 5128205 is about 2264.5540399823. The cubic root of 5128205 is about 172.4467944852.

The spelling of 5128205 in words is "five million, one hundred twenty-eight thousand, two hundred five".