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12612907 is a prime number
BaseRepresentation
bin110000000111…
…010100101011
3212201210122201
4300013110223
511212103112
61130201031
7212131216
oct60072453
925653581
1012612907
11713529a
124283177
1327c7c78
14196477d
151192257
hexc0752b

12612907 has 2 divisors, whose sum is σ = 12612908. Its totient is φ = 12612906.

The previous prime is 12612881. The next prime is 12612913. The reversal of 12612907 is 70921621.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (70921621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12612907 is a prime.

It is not a weakly prime, because it can be changed into another prime (12612917) 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, 6306453 + 6306454.

It is an arithmetic number, because the mean of its divisors is an integer number (6306454).

Almost surely, 212612907 is an apocalyptic number.

12612907 is a deficient number, since it is larger than the sum of its proper divisors (1).

12612907 is an equidigital number, since it uses as much as digits as its factorization.

12612907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 12612907 is about 3551.4654721678. The cubic root of 12612907 is about 232.7761054801.

The spelling of 12612907 in words is "twelve million, six hundred twelve thousand, nine hundred seven".