1155363791 has 2 divisors, whose sum is σ = 1155363792. Its totient is φ = 1155363790.

The previous prime is 1155363767. The next prime is 1155363817. The reversal of 1155363791 is 1973635511.

It is a weak prime.

It is an emirp because it is prime and its reverse (1973635511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1155363791 - 2¹⁴ = 1155347407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155363721) 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, 577681895 + 577681896.

It is an arithmetic number, because the mean of its divisors is an integer number (577681896).

Almost surely, 2^1155363791 is an apocalyptic number.

1155363791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155363791 is an equidigital number, since it uses as much as digits as its factorization.

1155363791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85050, while the sum is 41.

The square root of 1155363791 is about 33990.6426976602. The cubic root of 1155363791 is about 1049.3158933073.

The spelling of 1155363791 in words is "one billion, one hundred fifty-five million, three hundred sixty-three thousand, seven hundred ninety-one".