126706563 has 12 divisors (see below), whose sum is σ = 190978320. Its totient is φ = 80798256.

The previous prime is 126706543. The next prime is 126706637. The reversal of 126706563 is 365607621.

126706563 is a `hidden beast` number, since 1 + 26 + 70 + 6 + 563 = 666.

It is not a de Polignac number, because 126706563 - 2⁶ = 126706499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126706513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305848 + ... + 306261.

It is an arithmetic number, because the mean of its divisors is an integer number (15914860).

Almost surely, 2^126706563 is an apocalyptic number.

126706563 is a deficient number, since it is larger than the sum of its proper divisors (64271757).

126706563 is a wasteful number, since it uses less digits than its factorization.

126706563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612138 (or 612135 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 126706563 is about 11256.4009789986. The cubic root of 126706563 is about 502.2651401177.

The spelling of 126706563 in words is "one hundred twenty-six million, seven hundred six thousand, five hundred sixty-three".