1155310543 has 2 divisors, whose sum is σ = 1155310544. Its totient is φ = 1155310542.

The previous prime is 1155310529. The next prime is 1155310549. The reversal of 1155310543 is 3450135511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1155310543 - 2⁹ = 1155310031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155310549) 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, 577655271 + 577655272.

It is an arithmetic number, because the mean of its divisors is an integer number (577655272).

Almost surely, 2^1155310543 is an apocalyptic number.

1155310543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155310543 is an equidigital number, since it uses as much as digits as its factorization.

1155310543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1155310543 is about 33989.8594142429. The cubic root of 1155310543 is about 1049.2997728924.

The spelling of 1155310543 in words is "one billion, one hundred fifty-five million, three hundred ten thousand, five hundred forty-three".