1154342227 has 2 divisors, whose sum is σ = 1154342228. Its totient is φ = 1154342226.

The previous prime is 1154342221. The next prime is 1154342261. The reversal of 1154342227 is 7222434511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1154342227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1154342221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577171113 + 577171114.

It is an arithmetic number, because the mean of its divisors is an integer number (577171114).

Almost surely, 2^1154342227 is an apocalyptic number.

1154342227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154342227 is an equidigital number, since it uses as much as digits as its factorization.

1154342227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 31.

The square root of 1154342227 is about 33975.6122387809. The cubic root of 1154342227 is about 1049.0065363643.

Adding to 1154342227 its reverse (7222434511), we get a palindrome (8376776738).

The spelling of 1154342227 in words is "one billion, one hundred fifty-four million, three hundred forty-two thousand, two hundred twenty-seven".