126336563 has 12 divisors (see below), whose sum is σ = 132285888. Its totient is φ = 120528720.

The previous prime is 126336533. The next prime is 126336593. The reversal of 126336563 is 365633621.

It is an interprime number because it is at equal distance from previous prime (126336533) and next prime (126336593).

It is not a de Polignac number, because 126336563 - 2¹⁴ = 126320179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126336533) 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 in 11 ways as a sum of consecutive naturals, for example, 193145 + ... + 193797.

It is an arithmetic number, because the mean of its divisors is an integer number (11023824).

Almost surely, 2^126336563 is an apocalyptic number.

126336563 is a deficient number, since it is larger than the sum of its proper divisors (5949325).

126336563 is an frugal number, since it uses more digits than its factorization.

126336563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842 (or 763 counting only the distinct ones).

The product of its digits is 58320, while the sum is 35.

The square root of 126336563 is about 11239.9538700121. The cubic root of 126336563 is about 501.7757698169.

The spelling of 126336563 in words is "one hundred twenty-six million, three hundred thirty-six thousand, five hundred sixty-three".