1155564847 has 2 divisors, whose sum is σ = 1155564848. Its totient is φ = 1155564846.

The previous prime is 1155564841. The next prime is 1155564863. The reversal of 1155564847 is 7484655511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155564847 - 2¹⁹ = 1155040559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1155564797 and 1155564806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155564841) 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, 577782423 + 577782424.

It is an arithmetic number, because the mean of its divisors is an integer number (577782424).

Almost surely, 2^1155564847 is an apocalyptic number.

1155564847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155564847 is an equidigital number, since it uses as much as digits as its factorization.

1155564847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672000, while the sum is 46.

The square root of 1155564847 is about 33993.6000888403. The cubic root of 1155564847 is about 1049.3767569710.

The spelling of 1155564847 in words is "one billion, one hundred fifty-five million, five hundred sixty-four thousand, eight hundred forty-seven".