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12163841 is a prime number
BaseRepresentation
bin101110011001…
…101100000001
3211212222122122
4232121230001
511103220331
61112414025
7205251044
oct56315401
924788578
1012163841
116958968
1240a7315
13269b751
141888c5b
15110417b
hexb99b01

12163841 has 2 divisors, whose sum is σ = 12163842. Its totient is φ = 12163840.

The previous prime is 12163831. The next prime is 12163843. The reversal of 12163841 is 14836121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11082241 + 1081600 = 3329^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 12163841 - 210 = 12162817 is a prime.

Together with 12163843, it forms a pair of twin primes.

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 12163841.

It is not a weakly prime, because it can be changed into another prime (12163843) 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, 6081920 + 6081921.

It is an arithmetic number, because the mean of its divisors is an integer number (6081921).

Almost surely, 212163841 is an apocalyptic number.

It is an amenable number.

12163841 is a deficient number, since it is larger than the sum of its proper divisors (1).

12163841 is an equidigital number, since it uses as much as digits as its factorization.

12163841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 12163841 is about 3487.6698524946. The cubic root of 12163841 is about 229.9800927950.

Adding to 12163841 its reverse (14836121), we get a palindrome (26999962).

The spelling of 12163841 in words is "twelve million, one hundred sixty-three thousand, eight hundred forty-one".