1155313547 has 2 divisors, whose sum is σ = 1155313548. Its totient is φ = 1155313546.

The previous prime is 1155313531. The next prime is 1155313573. The reversal of 1155313547 is 7453135511.

It is a weak prime.

It is an emirp because it is prime and its reverse (7453135511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1155313547 - 2⁴ = 1155313531 is a prime.

It is not a weakly prime, because it can be changed into another prime (1155313517) 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, 577656773 + 577656774.

It is an arithmetic number, because the mean of its divisors is an integer number (577656774).

Almost surely, 2^1155313547 is an apocalyptic number.

1155313547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155313547 is an equidigital number, since it uses as much as digits as its factorization.

1155313547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 35.

The square root of 1155313547 is about 33989.9036038645. The cubic root of 1155313547 is about 1049.3006823431.

The spelling of 1155313547 in words is "one billion, one hundred fifty-five million, three hundred thirteen thousand, five hundred forty-seven".