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1201217 is a prime number
BaseRepresentation
bin100100101010001000001
32021000202112
410211101001
5301414332
641425105
713132043
oct4452101
92230675
101201217
11750546
1249b195
133309a4
14233a93
1518adb2
hex125441

1201217 has 2 divisors, whose sum is σ = 1201218. Its totient is φ = 1201216.

The previous prime is 1201201. The next prime is 1201229. The reversal of 1201217 is 7121021.

It is a Cunningham number, because it is equal to 10962+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1201216 + 1 = 1096^2 + 1^2 .

It is an emirp because it is prime and its reverse (7121021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201217 - 24 = 1201201 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1201247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600608 + 600609.

It is an arithmetic number, because the mean of its divisors is an integer number (600609).

21201217 is an apocalyptic number.

It is an amenable number.

1201217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201217 is an equidigital number, since it uses as much as digits as its factorization.

1201217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1201217 is about 1096.0004562043. Note that the first 3 decimals coincide. The cubic root of 1201217 is about 106.3017685442.

Adding to 1201217 its reverse (7121021), we get a palindrome (8322238).

The spelling of 1201217 in words is "one million, two hundred one thousand, two hundred seventeen".