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126130559 is a prime number
BaseRepresentation
bin1111000010010…
…01100101111111
322210100002121012
413201021211333
5224242134214
620303225435
73061043402
oct741114577
9283302535
10126130559
1165219835
12362a827b
1320192489
1412a73d39
15b11703e
hex784997f

126130559 has 2 divisors, whose sum is σ = 126130560. Its totient is φ = 126130558.

The previous prime is 126130519. The next prime is 126130561. The reversal of 126130559 is 955031621.

It is a strong prime.

It is an emirp because it is prime and its reverse (955031621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126130559 - 212 = 126126463 is a prime.

Together with 126130561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126130519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63065279 + 63065280.

It is an arithmetic number, because the mean of its divisors is an integer number (63065280).

Almost surely, 2126130559 is an apocalyptic number.

126130559 is a deficient number, since it is larger than the sum of its proper divisors (1).

126130559 is an equidigital number, since it uses as much as digits as its factorization.

126130559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 126130559 is about 11230.7862146868. The cubic root of 126130559 is about 501.5028901165.

The spelling of 126130559 in words is "one hundred twenty-six million, one hundred thirty thousand, five hundred fifty-nine".