111481685 has 16 divisors (see below), whose sum is σ = 153812736. Its totient is φ = 75982848.

The previous prime is 111481681. The next prime is 111481693. The reversal of 111481685 is 586184111.

It is a cyclic number.

It is not a de Polignac number, because 111481685 - 2² = 111481681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111481681) 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 15 ways as a sum of consecutive naturals, for example, 3692 + ... + 15381.

It is an arithmetic number, because the mean of its divisors is an integer number (9613296).

Almost surely, 2^111481685 is an apocalyptic number.

It is an amenable number.

111481685 is a deficient number, since it is larger than the sum of its proper divisors (42331051).

111481685 is a wasteful number, since it uses less digits than its factorization.

111481685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19252.

The product of its digits is 7680, while the sum is 35.

The square root of 111481685 is about 10558.4887649701. The cubic root of 111481685 is about 481.2837237288.

The spelling of 111481685 in words is "one hundred eleven million, four hundred eighty-one thousand, six hundred eighty-five".