1109346818 has 4 divisors (see below), whose sum is σ = 1664020230. Its totient is φ = 554673408.

The previous prime is 1109346817. The next prime is 1109346827. The reversal of 1109346818 is 8186439011.

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

It can be written as a sum of positive squares in only one way, i.e., 977625289 + 131721529 = 31267^2 + 11477^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1109346817) 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, 277336703 + ... + 277336706.

Almost surely, 2^1109346818 is an apocalyptic number.

1109346818 is a deficient number, since it is larger than the sum of its proper divisors (554673412).

1109346818 is an equidigital number, since it uses as much as digits as its factorization.

1109346818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554673411.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 1109346818 is about 33306.8584228534. The cubic root of 1109346818 is about 1035.1956713453.

The spelling of 1109346818 in words is "one billion, one hundred nine million, three hundred forty-six thousand, eight hundred eighteen".