1180042775 has 12 divisors (see below), whose sum is σ = 1488055800. Its totient is φ = 928032480.

The previous prime is 1180042769. The next prime is 1180042783. The reversal of 1180042775 is 5772400811.

It is not a de Polignac number, because 1180042775 - 2⁶ = 1180042711 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 398540 + ... + 401489.

It is an arithmetic number, because the mean of its divisors is an integer number (124004650).

Almost surely, 2^1180042775 is an apocalyptic number.

1180042775 is a deficient number, since it is larger than the sum of its proper divisors (308013025).

1180042775 is an equidigital number, since it uses as much as digits as its factorization.

1180042775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800098 (or 800093 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 1180042775 is about 34351.7506831894. The cubic root of 1180042775 is about 1056.7345738262.

The spelling of 1180042775 in words is "one billion, one hundred eighty million, forty-two thousand, seven hundred seventy-five".