73136563 has 2 divisors, whose sum is σ = 73136564. Its totient is φ = 73136562.

The previous prime is 73136543. The next prime is 73136599. The reversal of 73136563 is 36563137.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73136563 - 2⁹ = 73136051 is a prime.

It is not a weakly prime, because it can be changed into another prime (73136513) 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, 36568281 + 36568282.

It is an arithmetic number, because the mean of its divisors is an integer number (36568282).

Almost surely, 2^73136563 is an apocalyptic number.

73136563 is a deficient number, since it is larger than the sum of its proper divisors (1).

73136563 is an equidigital number, since it uses as much as digits as its factorization.

73136563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 34.

The square root of 73136563 is about 8551.9917563103. The cubic root of 73136563 is about 418.1943705819.

The spelling of 73136563 in words is "seventy-three million, one hundred thirty-six thousand, five hundred sixty-three".