8128201 has 3 divisors (see below), whose sum is σ = 8131053. Its totient is φ = 8125350.

The previous prime is 8128187. The next prime is 8128213. The reversal of 8128201 is 1028218.

The square root of 8128201 is 2851.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 8128201 - 2⁹ = 8127689 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (8128501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1426 + ... + 4276.

It is an arithmetic number, because the mean of its divisors is an integer number (2710351).

Almost surely, 2^8128201 is an apocalyptic number.

8128201 is the 2851-st square number.

8128201 is the 1426-th centered octagonal number.

It is an amenable number.

8128201 is a deficient number, since it is larger than the sum of its proper divisors (2852).

8128201 is an frugal number, since it uses more digits than its factorization.

8128201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702 (or 2851 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The cubic root of 8128201 is about 201.0626851671.

Multiplying 8128201 by its product of nonzero digits (256), we get a square (2080819456 = 45616²).

It can be divided in two parts, 81 and 28201, that added together give a palindrome (28282).

The spelling of 8128201 in words is "eight million, one hundred twenty-eight thousand, two hundred one".