1201650563 has 2 divisors, whose sum is σ = 1201650564. Its totient is φ = 1201650562.

The previous prime is 1201650557. The next prime is 1201650599. The reversal of 1201650563 is 3650561021.

It is a weak prime.

It is an emirp because it is prime and its reverse (3650561021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201650563 - 2⁴ = 1201650547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201650533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600825281 + 600825282.

It is an arithmetic number, because the mean of its divisors is an integer number (600825282).

Almost surely, 2^1201650563 is an apocalyptic number.

1201650563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201650563 is an equidigital number, since it uses as much as digits as its factorization.

1201650563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1201650563 is about 34664.8317895818. The cubic root of 1201650563 is about 1063.1455640009.

The spelling of 1201650563 in words is "one billion, two hundred one million, six hundred fifty thousand, five hundred sixty-three".