1180042769 has 2 divisors, whose sum is σ = 1180042770. Its totient is φ = 1180042768.

The previous prime is 1180042751. The next prime is 1180042783. The reversal of 1180042769 is 9672400811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 750102544 + 429940225 = 27388^2 + 20735^2 .

It is an emirp because it is prime and its reverse (9672400811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1180042769 - 2²⁸ = 911607313 is a prime.

It is a super-2 number, since 2×1180042769² = 2785001873338374722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1180042069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590021384 + 590021385.

It is an arithmetic number, because the mean of its divisors is an integer number (590021385).

Almost surely, 2^1180042769 is an apocalyptic number.

It is an amenable number.

1180042769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1180042769 is an equidigital number, since it uses as much as digits as its factorization.

1180042769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1180042769 is about 34351.7505958576. The cubic root of 1180042769 is about 1056.7345720352.

It can be divided in two parts, 1180042 and 769, that added together give a palindrome (1180811).

The spelling of 1180042769 in words is "one billion, one hundred eighty million, forty-two thousand, seven hundred sixty-nine".