1160156161 has 2 divisors, whose sum is σ = 1160156162. Its totient is φ = 1160156160.

The previous prime is 1160156147. The next prime is 1160156189. The reversal of 1160156161 is 1616510611.

It is an a-pointer prime, because the next prime (1160156189) can be obtained adding 1160156161 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1040385025 + 119771136 = 32255^2 + 10944^2 .

It is an emirp because it is prime and its reverse (1616510611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1160156161 - 2¹¹ = 1160154113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1160156191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580078080 + 580078081.

It is an arithmetic number, because the mean of its divisors is an integer number (580078081).

Almost surely, 2^1160156161 is an apocalyptic number.

It is an amenable number.

1160156161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1160156161 is an equidigital number, since it uses as much as digits as its factorization.

1160156161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 1160156161 is about 34061.0651771198. The cubic root of 1160156161 is about 1050.7647221264.

Adding to 1160156161 its reverse (1616510611), we get a palindrome (2776666772).

The spelling of 1160156161 in words is "one billion, one hundred sixty million, one hundred fifty-six thousand, one hundred sixty-one".