1115118 has 24 divisors (see below), whose sum is σ = 2476656. Its totient is φ = 362400.

The previous prime is 1115117. The next prime is 1115131. The reversal of 1115118 is 8115111.

It is a happy number.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1115118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18 + ... + 1493.

It is an arithmetic number, because the mean of its divisors is an integer number (103194).

2^1115118 is an apocalyptic number.

1115118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1115118 is an abundant number, since it is smaller than the sum of its proper divisors (1361538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115118 is a wasteful number, since it uses less digits than its factorization.

1115118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560 (or 1557 counting only the distinct ones).

The product of its digits is 40, while the sum is 18.

The square root of 1115118 is about 1055.9914772383. The cubic root of 1115118 is about 103.6987708569.

Adding to 1115118 its sum of digits (18), we get a square (1115136 = 1056²).

It can be divided in two parts, 11 and 15118, that added together give a square (15129 = 123²).

The spelling of 1115118 in words is "one million, one hundred fifteen thousand, one hundred eighteen".