1155160291 has 2 divisors, whose sum is σ = 1155160292. Its totient is φ = 1155160290.

The previous prime is 1155160267. The next prime is 1155160367. The reversal of 1155160291 is 1920615511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155160291 - 2⁷ = 1155160163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1155160261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577580145 + 577580146.

It is an arithmetic number, because the mean of its divisors is an integer number (577580146).

Almost surely, 2^1155160291 is an apocalyptic number.

1155160291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155160291 is an equidigital number, since it uses as much as digits as its factorization.

1155160291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 31.

The square root of 1155160291 is about 33987.6490949286. The cubic root of 1155160291 is about 1049.2542826054.

The spelling of 1155160291 in words is "one billion, one hundred fifty-five million, one hundred sixty thousand, two hundred ninety-one".