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1442321 is a prime number
BaseRepresentation
bin101100000001000010001
32201021111022
411200020101
5332123241
650525225
715155006
oct5401021
92637438
101442321
118a5701
12596815
133b665a
142978ad
151d754b
hex160211

1442321 has 2 divisors, whose sum is σ = 1442322. Its totient is φ = 1442320.

The previous prime is 1442317. The next prime is 1442327. The reversal of 1442321 is 1232441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1345600 + 96721 = 1160^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442321 - 22 = 1442317 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1442321.

It is not a weakly prime, because it can be changed into another prime (1442327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721160 + 721161.

It is an arithmetic number, because the mean of its divisors is an integer number (721161).

21442321 is an apocalyptic number.

It is an amenable number.

1442321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442321 is an equidigital number, since it uses as much as digits as its factorization.

1442321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 17.

The square root of 1442321 is about 1200.9666939595. The cubic root of 1442321 is about 112.9849615824.

Adding to 1442321 its reverse (1232441), we get a palindrome (2674762).

The spelling of 1442321 in words is "one million, four hundred forty-two thousand, three hundred twenty-one".