1118854243 has 8 divisors (see below), whose sum is σ = 1206497600. Its totient is φ = 1031436288.

The previous prime is 1118854241. The next prime is 1118854259. The reversal of 1118854243 is 3424588111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1118854243 - 2¹ = 1118854241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1118854241) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45963 + ... + 65956.

It is an arithmetic number, because the mean of its divisors is an integer number (150812200).

Almost surely, 2^1118854243 is an apocalyptic number.

1118854243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1118854243 is a deficient number, since it is larger than the sum of its proper divisors (87643357).

1118854243 is a wasteful number, since it uses less digits than its factorization.

1118854243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112701.

The product of its digits is 30720, while the sum is 37.

The square root of 1118854243 is about 33449.2786618785. The cubic root of 1118854243 is about 1038.1445723740.

The spelling of 1118854243 in words is "one billion, one hundred eighteen million, eight hundred fifty-four thousand, two hundred forty-three".