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12065939 is a prime number
BaseRepresentation
bin101110000001…
…110010010011
3211201000100122
4232001302103
511042102224
61110340455
7204362444
oct56016223
924630318
1012065939
1168a1356
12405a72b
132666012
1418612cb
1510d515e
hexb81c93

12065939 has 2 divisors, whose sum is σ = 12065940. Its totient is φ = 12065938.

The previous prime is 12065897. The next prime is 12065941. The reversal of 12065939 is 93956021.

It is a strong prime.

It is an emirp because it is prime and its reverse (93956021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12065939 - 212 = 12061843 is a prime.

It is a Sophie Germain prime.

Together with 12065941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12065899 and 12065908.

It is not a weakly prime, because it can be changed into another prime (12064939) 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, 6032969 + 6032970.

It is an arithmetic number, because the mean of its divisors is an integer number (6032970).

Almost surely, 212065939 is an apocalyptic number.

12065939 is a deficient number, since it is larger than the sum of its proper divisors (1).

12065939 is an equidigital number, since it uses as much as digits as its factorization.

12065939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 12065939 is about 3473.6060513535. The cubic root of 12065939 is about 229.3614233909.

The spelling of 12065939 in words is "twelve million, sixty-five thousand, nine hundred thirty-nine".