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1209107 is a prime number
BaseRepresentation
bin100100111001100010011
32021102120202
410213030103
5302142412
641525415
713164044
oct4471423
92242522
101209107
11756469
124a386b
13334463
142368cb
1518d3c2
hex127313

1209107 has 2 divisors, whose sum is σ = 1209108. Its totient is φ = 1209106.

The previous prime is 1209083. The next prime is 1209113. The reversal of 1209107 is 7019021.

It is a strong prime.

It is an emirp because it is prime and its reverse (7019021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1209107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1209007) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604553 + 604554.

It is an arithmetic number, because the mean of its divisors is an integer number (604554).

21209107 is an apocalyptic number.

1209107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1209107 is an equidigital number, since it uses as much as digits as its factorization.

1209107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 1209107 is about 1099.5940159895. The cubic root of 1209107 is about 106.5340028230.

The spelling of 1209107 in words is "one million, two hundred nine thousand, one hundred seven".