1118564115 has 16 divisors (see below), whose sum is σ = 1791369216. Its totient is φ = 596012000.

The previous prime is 1118564107. The next prime is 1118564119. The reversal of 1118564115 is 5114658111.

It is not a de Polignac number, because 1118564115 - 2³ = 1118564107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1118564119) 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 15 ways as a sum of consecutive naturals, for example, 17811 + ... + 50540.

It is an arithmetic number, because the mean of its divisors is an integer number (111960576).

Almost surely, 2^1118564115 is an apocalyptic number.

1118564115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1118564115 is a deficient number, since it is larger than the sum of its proper divisors (672805101).

1118564115 is a wasteful number, since it uses less digits than its factorization.

1118564115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69450.

The product of its digits is 4800, while the sum is 33.

The square root of 1118564115 is about 33444.9415457704. The cubic root of 1118564115 is about 1038.0548315079.

The spelling of 1118564115 in words is "one billion, one hundred eighteen million, five hundred sixty-four thousand, one hundred fifteen".