1118841554 has 12 divisors (see below), whose sum is σ = 1710533706. Its totient is φ = 548862912.

The previous prime is 1118841527. The next prime is 1118841569. The reversal of 1118841554 is 4551488111.

It can be written as a sum of positive squares in 3 ways, for example, as 1118568025 + 273529 = 33445^2 + 523^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93959 + ... + 105194.

Almost surely, 2^1118841554 is an apocalyptic number.

1118841554 is a deficient number, since it is larger than the sum of its proper divisors (591692152).

1118841554 is an equidigital number, since it uses as much as digits as its factorization.

1118841554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199261 (or 199208 counting only the distinct ones).

The product of its digits is 25600, while the sum is 38.

The square root of 1118841554 is about 33449.0889860995. The cubic root of 1118841554 is about 1038.1406478037.

The spelling of 1118841554 in words is "one billion, one hundred eighteen million, eight hundred forty-one thousand, five hundred fifty-four".