1155232506073 has 2 divisors, whose sum is σ = 1155232506074. Its totient is φ = 1155232506072.

The previous prime is 1155232505989. The next prime is 1155232506089. The reversal of 1155232506073 is 3706052325511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1072626848329 + 82605657744 = 1035677^2 + 287412^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155232506073 - 2¹⁷ = 1155232375001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1155232504073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577616253036 + 577616253037.

It is an arithmetic number, because the mean of its divisors is an integer number (577616253037).

Almost surely, 2^{1155232506073} is an apocalyptic number.

It is an amenable number.

1155232506073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155232506073 is an equidigital number, since it uses as much as digits as its factorization.

1155232506073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 1155232506073 in words is "one trillion, one hundred fifty-five billion, two hundred thirty-two million, five hundred six thousand, seventy-three".