1159101779 has 4 divisors (see below), whose sum is σ = 1264474680. Its totient is φ = 1053728880.

The previous prime is 1159101763. The next prime is 1159101799. The reversal of 1159101779 is 9771019511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1159101779 - 2⁴ = 1159101763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1159101709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52686434 + ... + 52686455.

It is an arithmetic number, because the mean of its divisors is an integer number (316118670).

Almost surely, 2^1159101779 is an apocalyptic number.

1159101779 is a deficient number, since it is larger than the sum of its proper divisors (105372901).

1159101779 is a wasteful number, since it uses less digits than its factorization.

1159101779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105372900.

The product of its (nonzero) digits is 19845, while the sum is 41.

The square root of 1159101779 is about 34045.5838399050. The cubic root of 1159101779 is about 1050.4463042994.

The spelling of 1159101779 in words is "one billion, one hundred fifty-nine million, one hundred one thousand, seven hundred seventy-nine".