1161712159 has 2 divisors, whose sum is σ = 1161712160. Its totient is φ = 1161712158.

The previous prime is 1161712157. The next prime is 1161712169. The reversal of 1161712159 is 9512171611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1161712159 - 2¹ = 1161712157 is a prime.

Together with 1161712157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161712157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580856079 + 580856080.

It is an arithmetic number, because the mean of its divisors is an integer number (580856080).

Almost surely, 2^1161712159 is an apocalyptic number.

1161712159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161712159 is an equidigital number, since it uses as much as digits as its factorization.

1161712159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 34.

The square root of 1161712159 is about 34083.8988233447. The cubic root of 1161712159 is about 1051.2342731111.

The spelling of 1161712159 in words is "one billion, one hundred sixty-one million, seven hundred twelve thousand, one hundred fifty-nine".