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14124221 is a prime number
BaseRepresentation
bin110101111000…
…010010111101
3222120120210022
4311320102331
512103433341
61222421525
7231024326
oct65702275
928516708
1014124221
117a77811
1248918a5
132c06b37
141c3944d
15138ee4b
hexd784bd

14124221 has 2 divisors, whose sum is σ = 14124222. Its totient is φ = 14124220.

The previous prime is 14124181. The next prime is 14124281. The reversal of 14124221 is 12242141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9084196 + 5040025 = 3014^2 + 2245^2 .

It is a cyclic number.

It is not a de Polignac number, because 14124221 - 214 = 14107837 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 14124221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14124281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7062110 + 7062111.

It is an arithmetic number, because the mean of its divisors is an integer number (7062111).

Almost surely, 214124221 is an apocalyptic number.

It is an amenable number.

14124221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14124221 is an equidigital number, since it uses as much as digits as its factorization.

14124221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 128, while the sum is 17.

The square root of 14124221 is about 3758.2204565459. The cubic root of 14124221 is about 241.7249624460.

Adding to 14124221 its reverse (12242141), we get a palindrome (26366362).

The spelling of 14124221 in words is "fourteen million, one hundred twenty-four thousand, two hundred twenty-one".