1118105193 has 4 divisors (see below), whose sum is σ = 1490806928. Its totient is φ = 745403460.

The previous prime is 1118105171. The next prime is 1118105203. The reversal of 1118105193 is 3915018111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1118105193 - 2⁸ = 1118104937 is a prime.

It is a super-2 number, since 2×1118105193² = 2500318445227134498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1118105193.

It is not an unprimeable number, because it can be changed into a prime (1118105123) 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, 186350863 + ... + 186350868.

It is an arithmetic number, because the mean of its divisors is an integer number (372701732).

Almost surely, 2^1118105193 is an apocalyptic number.

It is an amenable number.

1118105193 is a deficient number, since it is larger than the sum of its proper divisors (372701735).

1118105193 is an equidigital number, since it uses as much as digits as its factorization.

1118105193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372701734.

The product of its (nonzero) digits is 1080, while the sum is 30.

The square root of 1118105193 is about 33438.0799837550. The cubic root of 1118105193 is about 1037.9128484786.

The spelling of 1118105193 in words is "one billion, one hundred eighteen million, one hundred five thousand, one hundred ninety-three".