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126122413 is a prime number
BaseRepresentation
bin1111000010001…
…11100110101101
322210022200102111
413201013212231
5224241404123
620303124021
73061010554
oct741074655
9283280374
10126122413
11652136aa
12362a3611
132018b861
1412a70d9b
15b11490d
hex78479ad

126122413 has 2 divisors, whose sum is σ = 126122414. Its totient is φ = 126122412.

The previous prime is 126122393. The next prime is 126122431. The reversal of 126122413 is 314221621.

Together with next prime (126122431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109369764 + 16752649 = 10458^2 + 4093^2 .

It is a cyclic number.

It is not a de Polignac number, because 126122413 - 29 = 126121901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126122453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63061206 + 63061207.

It is an arithmetic number, because the mean of its divisors is an integer number (63061207).

Almost surely, 2126122413 is an apocalyptic number.

It is an amenable number.

126122413 is a deficient number, since it is larger than the sum of its proper divisors (1).

126122413 is an equidigital number, since it uses as much as digits as its factorization.

126122413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 126122413 is about 11230.4235449960. The cubic root of 126122413 is about 501.4920935511.

The spelling of 126122413 in words is "one hundred twenty-six million, one hundred twenty-two thousand, four hundred thirteen".