111685944 has 32 divisors (see below), whose sum is σ = 281232000. Its totient is φ = 36959712.

The previous prime is 111685939. The next prime is 111685949. The reversal of 111685944 is 449586111.

It is an interprime number because it is at equal distance from previous prime (111685939) and next prime (111685949).

It is a super-2 number, since 2×111685944² = 24947500174342272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111685949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13404 + ... + 20075.

It is an arithmetic number, because the mean of its divisors is an integer number (8788500).

Almost surely, 2^111685944 is an apocalyptic number.

It is an amenable number.

111685944 is an abundant number, since it is smaller than the sum of its proper divisors (169546056).

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

111685944 is a wasteful number, since it uses less digits than its factorization.

111685944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33627 (or 33623 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 111685944 is about 10568.1570768039. The cubic root of 111685944 is about 481.5774836513.

The spelling of 111685944 in words is "one hundred eleven million, six hundred eighty-five thousand, nine hundred forty-four".