109563947 has 2 divisors, whose sum is σ = 109563948. Its totient is φ = 109563946.

The previous prime is 109563941. The next prime is 109564033. The reversal of 109563947 is 749365901.

It is a weak prime.

It is an emirp because it is prime and its reverse (749365901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109563947 - 2²² = 105369643 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 109563898 and 109563907.

It is not a weakly prime, because it can be changed into another prime (109563941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54781973 + 54781974.

It is an arithmetic number, because the mean of its divisors is an integer number (54781974).

Almost surely, 2^109563947 is an apocalyptic number.

109563947 is a deficient number, since it is larger than the sum of its proper divisors (1).

109563947 is an equidigital number, since it uses as much as digits as its factorization.

109563947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 109563947 is about 10467.2798281120. The cubic root of 109563947 is about 478.5080221123.

The spelling of 109563947 in words is "one hundred nine million, five hundred sixty-three thousand, nine hundred forty-seven".