Search a number
-
+
8544121 is a prime number
BaseRepresentation
bin100000100101…
…111101111001
3121002002022221
4200211331321
54141402441
6503044041
7132423655
oct40457571
917062287
108544121
114906363
122a40621
131a01cc1
1411c5a65
15b3b8d1
hex825f79

8544121 has 2 divisors, whose sum is σ = 8544122. Its totient is φ = 8544120.

The previous prime is 8544079. The next prime is 8544131. The reversal of 8544121 is 1214458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4682896 + 3861225 = 2164^2 + 1965^2 .

It is a cyclic number.

It is not a de Polignac number, because 8544121 - 29 = 8543609 is a prime.

It is not a weakly prime, because it can be changed into another prime (8544131) by changing a digit.

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 as a sum of consecutive naturals, namely, 4272060 + 4272061.

It is an arithmetic number, because the mean of its divisors is an integer number (4272061).

Almost surely, 28544121 is an apocalyptic number.

It is an amenable number.

8544121 is a deficient number, since it is larger than the sum of its proper divisors (1).

8544121 is an equidigital number, since it uses as much as digits as its factorization.

8544121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 25.

The square root of 8544121 is about 2923.0328427850. The cubic root of 8544121 is about 204.4352570720.

Adding to 8544121 its reverse (1214458), we get a palindrome (9758579).

The spelling of 8544121 in words is "eight million, five hundred forty-four thousand, one hundred twenty-one".