1179105947 has 2 divisors, whose sum is σ = 1179105948. Its totient is φ = 1179105946.

The previous prime is 1179105937. The next prime is 1179105997. The reversal of 1179105947 is 7495019711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1179105947 - 2¹⁰ = 1179104923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1179105898 and 1179105907.

It is not a weakly prime, because it can be changed into another prime (1179105937) 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, 589552973 + 589552974.

It is an arithmetic number, because the mean of its divisors is an integer number (589552974).

Almost surely, 2^1179105947 is an apocalyptic number.

1179105947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1179105947 is an equidigital number, since it uses as much as digits as its factorization.

1179105947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 44.

The square root of 1179105947 is about 34338.1121641828. The cubic root of 1179105947 is about 1056.4548549740.

The spelling of 1179105947 in words is "one billion, one hundred seventy-nine million, one hundred five thousand, nine hundred forty-seven".