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12421061 is a prime number
BaseRepresentation
bin101111011000…
…011111000101
3212101001111022
4233120133011
511134433221
61122120525
7210402002
oct57303705
925331438
1012421061
117014144
1241b0145
13275b853
1419148a9
1511554ab
hexbd87c5

12421061 has 2 divisors, whose sum is σ = 12421062. Its totient is φ = 12421060.

The previous prime is 12421051. The next prime is 12421099. The reversal of 12421061 is 16012421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8300161 + 4120900 = 2881^2 + 2030^2 .

It is a cyclic number.

It is not a de Polignac number, because 12421061 - 214 = 12404677 is a prime.

It is a Sophie Germain 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 (12421021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210530 + 6210531.

It is an arithmetic number, because the mean of its divisors is an integer number (6210531).

Almost surely, 212421061 is an apocalyptic number.

It is an amenable number.

12421061 is a deficient number, since it is larger than the sum of its proper divisors (1).

12421061 is an equidigital number, since it uses as much as digits as its factorization.

12421061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 12421061 is about 3524.3525646564. The cubic root of 12421061 is about 231.5898731606.

Adding to 12421061 its reverse (16012421), we get a palindrome (28433482).

The spelling of 12421061 in words is "twelve million, four hundred twenty-one thousand, sixty-one".