1118814839 has 4 divisors (see below), whose sum is σ = 1118979456. Its totient is φ = 1118650224.

The previous prime is 1118814833. The next prime is 1118814841. The reversal of 1118814839 is 9384188111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9384188111 = 17839 ⋅526049.

It is a cyclic number.

It is not a de Polignac number, because 1118814839 - 2¹² = 1118810743 is a prime.

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 1118814839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118814833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71654 + ... + 85859.

It is an arithmetic number, because the mean of its divisors is an integer number (279744864).

Almost surely, 2^1118814839 is an apocalyptic number.

1118814839 is a deficient number, since it is larger than the sum of its proper divisors (164617).

1118814839 is an equidigital number, since it uses as much as digits as its factorization.

1118814839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164616.

The product of its digits is 55296, while the sum is 44.

The square root of 1118814839 is about 33448.6896454854. The cubic root of 1118814839 is about 1038.1323850466.

The spelling of 1118814839 in words is "one billion, one hundred eighteen million, eight hundred fourteen thousand, eight hundred thirty-nine".