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12862901 is a prime number
BaseRepresentation
bin110001000100…
…010110110101
3220012111120202
4301010112311
511243103101
61135410245
7214222112
oct61042665
926174522
1012862901
1172960a7
124383985
1328849ac
1419cb909
1511e136b
hexc445b5

12862901 has 2 divisors, whose sum is σ = 12862902. Its totient is φ = 12862900.

The previous prime is 12862873. The next prime is 12862933. The reversal of 12862901 is 10926821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9796900 + 3066001 = 3130^2 + 1751^2 .

It is an emirp because it is prime and its reverse (10926821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12862901 - 214 = 12846517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p840953 and since 12862901 and 840953 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12862951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6431450 + 6431451.

It is an arithmetic number, because the mean of its divisors is an integer number (6431451).

Almost surely, 212862901 is an apocalyptic number.

It is an amenable number.

12862901 is a deficient number, since it is larger than the sum of its proper divisors (1).

12862901 is an equidigital number, since it uses as much as digits as its factorization.

12862901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 12862901 is about 3586.4886727829. The cubic root of 12862901 is about 234.3039673571.

The spelling of 12862901 in words is "twelve million, eight hundred sixty-two thousand, nine hundred one".