1118100 has 36 divisors (see below), whose sum is σ = 3235904. Its totient is φ = 298080.

The previous prime is 1118081. The next prime is 1118101. The reversal of 1118100 is 18111.

It is a happy number.

It is a super-2 number, since 2×1118100² = 2500295220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118101) 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, 1564 + ... + 2163.

2^1118100 is an apocalyptic number.

1118100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1118100 is an abundant number, since it is smaller than the sum of its proper divisors (2117804).

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

1118100 is a wasteful number, since it uses less digits than its factorization.

1118100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744 (or 3737 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1118100 is about 1057.4024777728. The cubic root of 1118100 is about 103.7911241626.

The spelling of 1118100 in words is "one million, one hundred eighteen thousand, one hundred".