1155134999 has 2 divisors, whose sum is σ = 1155135000. Its totient is φ = 1155134998.

The previous prime is 1155134899. The next prime is 1155135017. The reversal of 1155134999 is 9994315511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155134999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155134399) 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, 577567499 + 577567500.

It is an arithmetic number, because the mean of its divisors is an integer number (577567500).

Almost surely, 2^1155134999 is an apocalyptic number.

1155134999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155134999 is an equidigital number, since it uses as much as digits as its factorization.

1155134999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 218700, while the sum is 47.

The square root of 1155134999 is about 33987.2770165543. The cubic root of 1155134999 is about 1049.2466248130.

The spelling of 1155134999 in words is "one billion, one hundred fifty-five million, one hundred thirty-four thousand, nine hundred ninety-nine".