1118100087 has 48 divisors (see below), whose sum is σ = 1858380160. Its totient is φ = 642033216.

The previous prime is 1118100073. The next prime is 1118100097. The reversal of 1118100087 is 7800018111.

It is not a de Polignac number, because 1118100087 - 2¹⁰ = 1118099063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1118100087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118100097) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145188 + ... + 152694.

Almost surely, 2^1118100087 is an apocalyptic number.

1118100087 is a deficient number, since it is larger than the sum of its proper divisors (740280073).

1118100087 is a wasteful number, since it uses less digits than its factorization.

1118100087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7612 (or 7609 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 27.

The square root of 1118100087 is about 33438.0036335903. The cubic root of 1118100087 is about 1037.9112685465.

Adding to 1118100087 its reverse (7800018111), we get a palindrome (8918118198).

The spelling of 1118100087 in words is "one billion, one hundred eighteen million, one hundred thousand, eighty-seven".