1179779071 has 2 divisors, whose sum is σ = 1179779072. Its totient is φ = 1179779070.

The previous prime is 1179779021. The next prime is 1179779093. The reversal of 1179779071 is 1709779711.

It is a strong prime.

It is an emirp because it is prime and its reverse (1709779711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1179779071 - 2¹⁷ = 1179647999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1179779021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589889535 + 589889536.

It is an arithmetic number, because the mean of its divisors is an integer number (589889536).

Almost surely, 2^1179779071 is an apocalyptic number.

1179779071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1179779071 is an equidigital number, since it uses as much as digits as its factorization.

1179779071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194481, while the sum is 49.

The square root of 1179779071 is about 34347.9121781805. The cubic root of 1179779071 is about 1056.6558518510.

The spelling of 1179779071 in words is "one billion, one hundred seventy-nine million, seven hundred seventy-nine thousand, seventy-one".