1118208015 has 24 divisors (see below), whose sum is σ = 1960012080. Its totient is φ = 589674624.

The previous prime is 1118207999. The next prime is 1118208017. The reversal of 1118208015 is 5108028111.

It is not a de Polignac number, because 1118208015 - 2⁴ = 1118207999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1118208015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118208017) 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 in 23 ways as a sum of consecutive naturals, for example, 135597 + ... + 143606.

It is an arithmetic number, because the mean of its divisors is an integer number (81667170).

Almost surely, 2^1118208015 is an apocalyptic number.

1118208015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1118208015 is a deficient number, since it is larger than the sum of its proper divisors (841804065).

1118208015 is a wasteful number, since it uses less digits than its factorization.

1118208015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279303 (or 279300 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 27.

The square root of 1118208015 is about 33439.6174469745. The cubic root of 1118208015 is about 1037.9446633157.

The spelling of 1118208015 in words is "one billion, one hundred eighteen million, two hundred eight thousand, fifteen".