111718040 has 48 divisors (see below), whose sum is σ = 292410000. Its totient is φ = 38302656.

The previous prime is 111718039. The next prime is 111718049. The reversal of 111718040 is 40817111.

111718040 = 1142² + 1143² + ... + 1221².

It is a happy number.

It is a super-2 number, since 2×111718040² = 24961840922883200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111717997 and 111718015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111718049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26540 + ... + 30459.

It is an arithmetic number, because the mean of its divisors is an integer number (6091875).

Almost surely, 2^111718040 is an apocalyptic number.

111718040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111718040 is an abundant number, since it is smaller than the sum of its proper divisors (180691960).

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

111718040 is a wasteful number, since it uses less digits than its factorization.

111718040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57024 (or 57013 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 111718040 is about 10569.6754917074. The cubic root of 111718040 is about 481.6236107047.

The spelling of 111718040 in words is "one hundred eleven million, seven hundred eighteen thousand, forty".