1155044633 has 2 divisors, whose sum is σ = 1155044634. Its totient is φ = 1155044632.

The previous prime is 1155044519. The next prime is 1155044641. The reversal of 1155044633 is 3364405511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 776625424 + 378419209 = 27868^2 + 19453^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155044633 - 2⁸ = 1155044377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155044633.

It is not a weakly prime, because it can be changed into another prime (1155044833) 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, 577522316 + 577522317.

It is an arithmetic number, because the mean of its divisors is an integer number (577522317).

Almost surely, 2^1155044633 is an apocalyptic number.

It is an amenable number.

1155044633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155044633 is an equidigital number, since it uses as much as digits as its factorization.

1155044633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1155044633 is about 33985.9475813166. The cubic root of 1155044633 is about 1049.2192633089.

The spelling of 1155044633 in words is "one billion, one hundred fifty-five million, forty-four thousand, six hundred thirty-three".