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12254681 is a prime number
BaseRepresentation
bin101110101111…
…110111011001
3212001121021002
4232233313121
511114122211
61114354345
7206106635
oct56576731
925047232
1012254681
116a1013a
12412b9b5
132700bba
1418addc5
15112103b
hexbafdd9

12254681 has 2 divisors, whose sum is σ = 12254682. Its totient is φ = 12254680.

The previous prime is 12254663. The next prime is 12254719. The reversal of 12254681 is 18645221.

12254681 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., 12187081 + 67600 = 3491^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 12254681 - 214 = 12238297 is a prime.

It is a super-2 number, since 2×122546812 = 300354412823522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12250681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6127340 + 6127341.

It is an arithmetic number, because the mean of its divisors is an integer number (6127341).

Almost surely, 212254681 is an apocalyptic number.

It is an amenable number.

12254681 is a deficient number, since it is larger than the sum of its proper divisors (1).

12254681 is an equidigital number, since it uses as much as digits as its factorization.

12254681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 29.

The square root of 12254681 is about 3500.6686504152. The cubic root of 12254681 is about 230.5511733838.

The spelling of 12254681 in words is "twelve million, two hundred fifty-four thousand, six hundred eighty-one".