1185730545169 has 2 divisors, whose sum is σ = 1185730545170. Its totient is φ = 1185730545168.

The previous prime is 1185730545119. The next prime is 1185730545173. The reversal of 1185730545169 is 9615450375811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 862134534144 + 323596011025 = 928512^2 + 568855^2 .

It is a cyclic number.

It is not a de Polignac number, because 1185730545169 - 2⁹ = 1185730544657 is a prime.

It is a super-2 number, since 2×1185730545169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1185730545119) 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, 592865272584 + 592865272585.

It is an arithmetic number, because the mean of its divisors is an integer number (592865272585).

Almost surely, 2^{1185730545169} is an apocalyptic number.

It is an amenable number.

1185730545169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1185730545169 is an equidigital number, since it uses as much as digits as its factorization.

1185730545169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536000, while the sum is 55.

The spelling of 1185730545169 in words is "one trillion, one hundred eighty-five billion, seven hundred thirty million, five hundred forty-five thousand, one hundred sixty-nine".