1154272291 has 2 divisors, whose sum is σ = 1154272292. Its totient is φ = 1154272290.

The previous prime is 1154272279. The next prime is 1154272331. The reversal of 1154272291 is 1922724511.

It is a weak prime.

It is an emirp because it is prime and its reverse (1922724511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1154272291 - 2¹⁹ = 1153748003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1154272241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577136145 + 577136146.

It is an arithmetic number, because the mean of its divisors is an integer number (577136146).

Almost surely, 2^1154272291 is an apocalyptic number.

1154272291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154272291 is an equidigital number, since it uses as much as digits as its factorization.

1154272291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 34.

The square root of 1154272291 is about 33974.5830143653. The cubic root of 1154272291 is about 1048.9853511961.

The spelling of 1154272291 in words is "one billion, one hundred fifty-four million, two hundred seventy-two thousand, two hundred ninety-one".