1156305499 has 2 divisors, whose sum is σ = 1156305500. Its totient is φ = 1156305498.

The previous prime is 1156305461. The next prime is 1156305511. The reversal of 1156305499 is 9945036511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1156305499 - 2⁹ = 1156304987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1156309499) 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, 578152749 + 578152750.

It is an arithmetic number, because the mean of its divisors is an integer number (578152750).

Almost surely, 2^1156305499 is an apocalyptic number.

1156305499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156305499 is an equidigital number, since it uses as much as digits as its factorization.

1156305499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 1156305499 is about 34004.4923355724. The cubic root of 1156305499 is about 1049.6009062267.

The spelling of 1156305499 in words is "one billion, one hundred fifty-six million, three hundred five thousand, four hundred ninety-nine".