1118799755 has 4 divisors (see below), whose sum is σ = 1342559712. Its totient is φ = 895039800.

The previous prime is 1118799751. The next prime is 1118799763. The reversal of 1118799755 is 5579978111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1118799755 - 2² = 1118799751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1118799697 and 1118799706.

It is not an unprimeable number, because it can be changed into a prime (1118799751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111879971 + ... + 111879980.

It is an arithmetic number, because the mean of its divisors is an integer number (335639928).

Almost surely, 2^1118799755 is an apocalyptic number.

1118799755 is a deficient number, since it is larger than the sum of its proper divisors (223759957).

1118799755 is an equidigital number, since it uses as much as digits as its factorization.

1118799755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223759956.

The product of its digits is 793800, while the sum is 53.

The square root of 1118799755 is about 33448.4641650405. The cubic root of 1118799755 is about 1038.1277196159.

The spelling of 1118799755 in words is "one billion, one hundred eighteen million, seven hundred ninety-nine thousand, seven hundred fifty-five".