111138804 has 60 divisors (see below), whose sum is σ = 332051104. Its totient is φ = 31753296.

The previous prime is 111138799. The next prime is 111138821. The reversal of 111138804 is 408831111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22234 + ... + 26769.

Almost surely, 2^111138804 is an apocalyptic number.

111138804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

111138804 is an abundant number, since it is smaller than the sum of its proper divisors (220912300).

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

111138804 is a wasteful number, since it uses less digits than its factorization.

111138804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49026 (or 49015 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 111138804 is about 10542.2390411146. The cubic root of 111138804 is about 480.7897935085.

Adding to 111138804 its reverse (408831111), we get a palindrome (519969915).

The spelling of 111138804 in words is "one hundred eleven million, one hundred thirty-eight thousand, eight hundred four".