1155450133 has 2 divisors, whose sum is σ = 1155450134. Its totient is φ = 1155450132.

The previous prime is 1155450089. The next prime is 1155450139. The reversal of 1155450133 is 3310545511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 668894769 + 486555364 = 25863^2 + 22058^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155450133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155450139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577725066 + 577725067.

It is an arithmetic number, because the mean of its divisors is an integer number (577725067).

Almost surely, 2^1155450133 is an apocalyptic number.

It is an amenable number.

1155450133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155450133 is an equidigital number, since it uses as much as digits as its factorization.

1155450133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1155450133 is about 33991.9127587725. The cubic root of 1155450133 is about 1049.3420316188.

Adding to 1155450133 its reverse (3310545511), we get a palindrome (4465995644).

The spelling of 1155450133 in words is "one billion, one hundred fifty-five million, four hundred fifty thousand, one hundred thirty-three".