111727940 has 12 divisors (see below), whose sum is σ = 234628716. Its totient is φ = 44691168.

The previous prime is 111727921. The next prime is 111727991. The reversal of 111727940 is 49727111.

It can be written as a sum of positive squares in 2 ways, for example, as 29571844 + 82156096 = 5438^2 + 9064^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111727897 and 111727906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2793179 + ... + 2793218.

It is an arithmetic number, because the mean of its divisors is an integer number (19552393).

Almost surely, 2^111727940 is an apocalyptic number.

111727940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111727940 is an abundant number, since it is smaller than the sum of its proper divisors (122900776).

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

111727940 is a wasteful number, since it uses less digits than its factorization.

111727940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586406 (or 5586404 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 111727940 is about 10570.1438022385. The cubic root of 111727940 is about 481.6378367954.

The spelling of 111727940 in words is "one hundred eleven million, seven hundred twenty-seven thousand, nine hundred forty".