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12008261 is a prime number
BaseRepresentation
bin101101110011…
…101101000101
3211121002020102
4231303231011
511033231021
61105213445
7204032336
oct55635505
924532212
1012008261
116861a91
124031285
1326459a5
14184828d
1510c300b
hexb73b45

12008261 has 2 divisors, whose sum is σ = 12008262. Its totient is φ = 12008260.

The previous prime is 12008251. The next prime is 12008351. The reversal of 12008261 is 16280021.

12008261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9728161 + 2280100 = 3119^2 + 1510^2 .

It is a cyclic number.

It is not a de Polignac number, because 12008261 - 26 = 12008197 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12008201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004130 + 6004131.

It is an arithmetic number, because the mean of its divisors is an integer number (6004131).

Almost surely, 212008261 is an apocalyptic number.

It is an amenable number.

12008261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12008261 is an equidigital number, since it uses as much as digits as its factorization.

12008261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 12008261 is about 3465.2937826395. The cubic root of 12008261 is about 228.9953724839.

Adding to 12008261 its reverse (16280021), we get a palindrome (28288282).

The spelling of 12008261 in words is "twelve million, eight thousand, two hundred sixty-one".