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12814261 is a prime number
BaseRepresentation
bin110000111000…
…011110110101
3220010000212021
4300320132311
511240024021
61134353141
7213630235
oct60703665
926100767
1012814261
1172625a9
12435b7b1
132868805
1419b7cc5
1511d1c41
hexc387b5

12814261 has 2 divisors, whose sum is σ = 12814262. Its totient is φ = 12814260.

The previous prime is 12814237. The next prime is 12814267. The reversal of 12814261 is 16241821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11350161 + 1464100 = 3369^2 + 1210^2 .

It is an emirp because it is prime and its reverse (16241821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12814261 is a prime.

It is a super-2 number, since 2×128142612 = 328410569952242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12814267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6407130 + 6407131.

It is an arithmetic number, because the mean of its divisors is an integer number (6407131).

Almost surely, 212814261 is an apocalyptic number.

It is an amenable number.

12814261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12814261 is an equidigital number, since it uses as much as digits as its factorization.

12814261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 25.

The square root of 12814261 is about 3579.7012445175. The cubic root of 12814261 is about 234.0082605991.

The spelling of 12814261 in words is "twelve million, eight hundred fourteen thousand, two hundred sixty-one".