1154223233 has 2 divisors, whose sum is σ = 1154223234. Its totient is φ = 1154223232.

The previous prime is 1154223223. The next prime is 1154223281. The reversal of 1154223233 is 3323224511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1110755584 + 43467649 = 33328^2 + 6593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1154223233 is a prime.

It is not a weakly prime, because it can be changed into another prime (1154223223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577111616 + 577111617.

It is an arithmetic number, because the mean of its divisors is an integer number (577111617).

Almost surely, 2^1154223233 is an apocalyptic number.

It is an amenable number.

1154223233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154223233 is an equidigital number, since it uses as much as digits as its factorization.

1154223233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 1154223233 is about 33973.8610257945. The cubic root of 1154223233 is about 1048.9704899273.

Adding to 1154223233 its reverse (3323224511), we get a palindrome (4477447744).

The spelling of 1154223233 in words is "one billion, one hundred fifty-four million, two hundred twenty-three thousand, two hundred thirty-three".