126837563 has 2 divisors, whose sum is σ = 126837564. Its totient is φ = 126837562.

The previous prime is 126837553. The next prime is 126837589. The reversal of 126837563 is 365738621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126837563 - 2⁴ = 126837547 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126837563.

It is not a weakly prime, because it can be changed into another prime (126837553) 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, 63418781 + 63418782.

It is an arithmetic number, because the mean of its divisors is an integer number (63418782).

Almost surely, 2^126837563 is an apocalyptic number.

126837563 is a deficient number, since it is larger than the sum of its proper divisors (1).

126837563 is an equidigital number, since it uses as much as digits as its factorization.

126837563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 126837563 is about 11262.2183871562. The cubic root of 126837563 is about 502.4381752770.

The spelling of 126837563 in words is "one hundred twenty-six million, eight hundred thirty-seven thousand, five hundred sixty-three".