1161064493 has 2 divisors, whose sum is σ = 1161064494. Its totient is φ = 1161064492.

The previous prime is 1161064469. The next prime is 1161064529. The reversal of 1161064493 is 3944601611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1146025609 + 15038884 = 33853^2 + 3878^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161064493 - 2⁸ = 1161064237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161054493) 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, 580532246 + 580532247.

It is an arithmetic number, because the mean of its divisors is an integer number (580532247).

Almost surely, 2^1161064493 is an apocalyptic number.

It is an amenable number.

1161064493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161064493 is an equidigital number, since it uses as much as digits as its factorization.

1161064493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1161064493 is about 34074.3964436643. The cubic root of 1161064493 is about 1051.0388789659.

The spelling of 1161064493 in words is "one billion, one hundred sixty-one million, sixty-four thousand, four hundred ninety-three".