1151332291 has 2 divisors, whose sum is σ = 1151332292. Its totient is φ = 1151332290.

The previous prime is 1151332289. The next prime is 1151332297. The reversal of 1151332291 is 1922331511.

It is a weak prime.

It is an emirp because it is prime and its reverse (1922331511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1151332291 - 2¹ = 1151332289 is a prime.

Together with 1151332289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1151332297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575666145 + 575666146.

It is an arithmetic number, because the mean of its divisors is an integer number (575666146).

Almost surely, 2^1151332291 is an apocalyptic number.

1151332291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151332291 is an equidigital number, since it uses as much as digits as its factorization.

1151332291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 28.

The square root of 1151332291 is about 33931.2877887062. The cubic root of 1151332291 is about 1048.0939846733.

The spelling of 1151332291 in words is "one billion, one hundred fifty-one million, three hundred thirty-two thousand, two hundred ninety-one".