1159994047 has 2 divisors, whose sum is σ = 1159994048. Its totient is φ = 1159994046.

The previous prime is 1159994039. The next prime is 1159994063. The reversal of 1159994047 is 7404999511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1159994047 - 2³ = 1159994039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1159904047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579997023 + 579997024.

It is an arithmetic number, because the mean of its divisors is an integer number (579997024).

Almost surely, 2^1159994047 is an apocalyptic number.

1159994047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159994047 is an equidigital number, since it uses as much as digits as its factorization.

1159994047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 1159994047 is about 34058.6853386915. The cubic root of 1159994047 is about 1050.7157771042.

The spelling of 1159994047 in words is "one billion, one hundred fifty-nine million, nine hundred ninety-four thousand, forty-seven".